Vulnerability-Lookup

CVE-2026-20172 (GCVE-0-2026-20172)

Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:46

Title

Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability

Summary

A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent. This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. 

Severity ?

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-646 - Reliance on File Name or Extension of Externally-Supplied File

Assigner

cisco

References

URL

Tags

https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Enterprise Chat and Email	Affected: 11.6(1)_ES3 Affected: 11.6(1)_ES4 Affected: 12.0(1)_ES6 Affected: 11.6(1)_ES8 Affected: 12.0(1)_ES5a Affected: 11.6(1)_ES9 Affected: 12.0(1)_ES6_ET1 Affected: 11.6(1)_ES6 Affected: 11.6(1)_ES5 Affected: 12.5(1)_ET1 Affected: 12.5(1) Affected: 12.5(1)_ES3_ET1 Affected: 12.0(1)_ES3 Affected: 11.6(1)_ES11 Affected: 12.0(1)_ES4 Affected: 12.0(1)_ES5 Affected: 11.6(1)_ES2 Affected: 11.6(1)_ES9a Affected: 11.6(1)_ES10 Affected: 12.0(1)_ES1 Affected: 12.0(1) Affected: 12.5(1)_ES3 Affected: 12.6(1) Affected: 11.5(1) Affected: 12.0(1)_ES2 Affected: 11.6(1)_ES7 Affected: 12.5(1)_ES2 Affected: 12.6(1)_ET1 Affected: 11.6(1) Affected: 12.5(1)_ES1 Affected: 12.6(1)_ET2 Affected: 12.5(1)_ES3_ET2 Affected: 12.0(1)_ES6_ET2 Affected: 12.6(1)_ES1 Affected: 12.5(1)_ES4 Affected: 11.6(1)_ES12 Affected: 12.6(1)_ET3 Affected: 12.5(1)_ES4_ET1 Affected: 12.0(1)_ES6_ET3 Affected: 12.6(1)_ES1_ET1 Affected: 12.6(1)_ES2 Affected: 12.6_ES2_ET1 Affected: 12.5(1)_ES5 Affected: 12.6_ES2_ET2 Affected: 12.0(1)_ES7 Affected: 12.6_ES2_ET3 Affected: 12.0(1)_ES7_ET1 Affected: 12.5(1)_ES5_ET1 Affected: 12.6_ES2_ET4 Affected: 12.6(1)_ES3 Affected: 11.6(1)_ES12_ET1 Affected: 12.6_ES3_ET1 Affected: 12.5(1)_ES6 Affected: 12.6_ES3_ET2 Affected: 12.6(1)_ES4 Affected: 12.5(1)_ES7 Affected: 12.6(1)_ES4_ET1 Affected: 12.6(1)_ES5 Affected: 12.6(1)_ES5_ET1 Affected: 12.6(1)_ES5_ET2 Affected: 12.6(1)_ES6 Affected: 12.6(1)_ES6_ET1 Affected: 12.5(1)_ES8 Affected: 12.6(1)_ES6_ET2 Affected: 12.6(1)_ES7 Affected: 12.6(1)_ES8 Affected: 12.6(1)_ES4_ET2 Affected: 12.6(1)_ES3_ET3 Affected: 12.6(1)_ES2_ET5 Affected: 12.6(1)_ES1_ET2 Affected: 12.6(1)_ES8_ET1 Affected: 12.6(1)_ES7_ET1 Affected: 12.6(1)_ES6_ET3 Affected: 12.6(1)_ES5_ET3 Affected: 12.5(1)_ES8_ET1 Affected: 12.5(1)_ES3_ET3 Affected: 12.5(1)_ES5_ET2 Affected: 12.5(1)_ES6_ET1 Affected: 12.5(1)_ES4_ET2 Affected: 12.5(1)_ES7_ET1 Affected: 12.6(1)_ES8_ET2 Affected: 12.6(1)_ES9 Affected: 12.6(1)_ES9_ET1 Affected: 12.5(1)_ES9 Affected: 12.6(1)_ES9_ET2 Affected: 12.6(1)_ES9_ET3 Affected: 12.6(1)_ES10 Affected: 12.6(1)_ES10_ET1 Affected: 15.0(1) Affected: 12.6(1)_ES11 Affected: 15.0(1)_ET1 Affected: 15.0(1)ES202508 Affected: 12.6(1)_ES11_ET1 Affected: 12.6(1)_ES11_ET2 Affected: 12.6(1)_ES12 Affected: 15.0(1)ES202511 Affected: 12.6(1)_ES12_ET1 Affected: 15.0(1)ES202511_ET1 Affected: 12.5(1)_ES10

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\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Enterprise Chat and Email\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.6(1)_ES3\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES4\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES6\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES8\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES5a\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES9\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES6_ET1\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES6\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES5\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES3_ET1\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES3\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES11\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES4\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES5\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES2\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES9a\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES10\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES1\"}, {\"status\": \"affected\", \"version\": \"12.0(1)\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES3\"}, {\"status\": \"affected\", \"version\": \"12.6(1)\"}, {\"status\": \"affected\", \"version\": \"11.5(1)\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES2\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES7\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ET1\"}, {\"status\": \"affected\", \"version\": \"11.6(1)\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ET2\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES3_ET2\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES6_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES4\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES12\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ET3\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES4_ET1\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES6_ET3\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES1_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES2\"}, {\"status\": \"affected\", \"version\": \"12.6_ES2_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES5\"}, {\"status\": \"affected\", \"version\": \"12.6_ES2_ET2\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES7\"}, {\"status\": \"affected\", \"version\": \"12.6_ES2_ET3\"}, {\"status\": \"affected\", \"version\": \"12.0(1)_ES7_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES5_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6_ES2_ET4\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES3\"}, {\"status\": \"affected\", \"version\": \"11.6(1)_ES12_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6_ES3_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES6\"}, {\"status\": \"affected\", \"version\": \"12.6_ES3_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES4\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES7\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES4_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES5\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES5_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES5_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES6\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES6_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES8\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES6_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES7\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES8\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES4_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES3_ET3\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES2_ET5\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES1_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES8_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES7_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES6_ET3\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES5_ET3\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES8_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES3_ET3\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES5_ET2\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES6_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES4_ET2\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES7_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES8_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES9\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES9_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES9\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES9_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES9_ET3\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES10\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES10_ET1\"}, {\"status\": \"affected\", \"version\": \"15.0(1)\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES11\"}, {\"status\": \"affected\", \"version\": \"15.0(1)_ET1\"}, {\"status\": \"affected\", \"version\": \"15.0(1)ES202508\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES11_ET1\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES11_ET2\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES12\"}, {\"status\": \"affected\", \"version\": \"15.0(1)ES202511\"}, {\"status\": \"affected\", \"version\": \"12.6(1)_ES12_ET1\"}, {\"status\": \"affected\", \"version\": \"15.0(1)ES202511_ET1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)_ES10\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb\", \"name\": \"cisco-sa-ece-lite-agent-BCgSN8eb\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\\r\\n\\r\\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\u0026nbsp;\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-646\", \"description\": \"Reliance on File Name or Extension of Externally-Supplied File\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-05-06T16:15:37.789Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20172\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-06T17:46:04.178Z\", \"dateReserved\": \"2025-10-08T11:59:15.391Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-05-06T16:15:37.789Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-20172

Vulnerability from fkie_nvd - Published: 2026-05-06 17:16 - Updated: 2026-05-06 18:59

Severity ?

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	psirt@cisco.com	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\u0026nbsp;"
    }
  ],
  "id": "CVE-2026-20172",
  "lastModified": "2026-05-06T18:59:53.230",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "psirt@cisco.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-05-06T17:16:20.880",
  "references": [
    {
      "source": "psirt@cisco.com",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-646"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Primary"
    }
  ]
}

CISCO-SA-ECE-LITE-AGENT-BCGSN8EB

Vulnerability from csaf_cisco - Published: 2026-05-06 16:00 - Updated: 2026-05-06 16:00

Summary

Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability

Notes

Summary: A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent. This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Vulnerable Products: At the time of publication, this vulnerability affected Cisco ECE if the Lite Agent was enabled. For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software ["#fs"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

Products Confirmed Not Vulnerable: Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability.

Workarounds: There are no workarounds that address this vulnerability.

Fixed Software: Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To fully remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory. Fixed Releases At the time of publication, the release information in the following table was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability that is described in this advisory and which release included the fix for this vulnerability. Cisco ECE Releases First Fixed Release 12 and earlier Migrate to a fixed release. 15 15.0(1)ES202603 The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.

Vulnerability Policy: To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.

Exploitation and Public Announcements: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source: Cisco would like to thank Muammar Fadhlurrohman for reporting this vulnerability.

Legal Disclaimer: SOFTWARE DOWNLOADS AND TECHNICAL SUPPORT The Cisco Support and Downloads ["https://www.cisco.com/c/en/us/support/index.html"] page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. Please note that customers may download only software that was procured from Cisco directly or through a Cisco authorized reseller or partner and for which the license is still valid. Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC) ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"]. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories ["https://www.cisco.com/go/psirt"] for the relevant Cisco products to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"] or their contracted maintenance providers. LEGAL DISCLAIMER DETAILS CISCO DOES NOT MAKE ANY EXPRESS OR IMPLIED GUARANTEES OR WARRANTIES OF ANY KIND, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, CISCO DOES NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF THIS INFORMATION. THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. Copies or summaries of the information contained in this Security Advisory may lack important information or contain factual errors. Customers are advised to visit the Cisco Security Advisories ["https://www.cisco.com/go/psirt"] page for the most recent version of this Security Advisory. The Cisco Product Security Incident Response Team (PSIRT) assesses only the affected and fixed release information that is documented in this advisory. See the Cisco Security Vulnerability Policy ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"] for more information.

CVE-2026-20172

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Fix Cisco has released software updates that address this vulnerability. https://software.cisco.com

References

URL

Category

	https://sec.cloudapps.cisco.com/security/center/c…	self
	https://sec.cloudapps.cisco.com/security/center/r…	external
	http://www.cisco.com/web/about/security/psirt/sec…	external
	https://www.cisco.com/c/en/us/support/index.html	external
	https://www.cisco.com/c/en/us/support/web/tsd-cis…	external
	https://sec.cloudapps.cisco.com/security/center/r…	external
	https://www.cisco.com/go/psirt	external

Acknowledgments

JSON

To clipboard

{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Muammar Fadhlurrohman for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "At the time of publication, this vulnerability affected Cisco ECE if the Lite Agent was enabled.\r\n\r\nFor information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software [\"#fs\"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To fully remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.\r\n      Fixed Releases\r\nAt the time of publication, the release information in the following table was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\nThe left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability that is described in this advisory and which release included the fix for this vulnerability.\r\n        Cisco ECE Releases  First Fixed Release          12 and earlier  Migrate to a fixed release.      15  15.0(1)ES202603\r\nThe Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Muammar Fadhlurrohman for reporting this vulnerability.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "SOFTWARE DOWNLOADS AND TECHNICAL SUPPORT\r\n\r\nThe Cisco Support and Downloads [\"https://www.cisco.com/c/en/us/support/index.html\"] page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. Please note that customers may download only software that was procured from Cisco directly or through a Cisco authorized reseller or partner and for which the license is still valid.\r\n\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories [\"https://www.cisco.com/go/psirt\"] for the relevant Cisco products to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"] or their contracted maintenance providers.\r\nLEGAL DISCLAIMER DETAILS\r\n\r\nCISCO DOES NOT MAKE ANY EXPRESS OR IMPLIED GUARANTEES OR WARRANTIES OF ANY KIND, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, CISCO DOES NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF THIS INFORMATION. THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nCopies or summaries of the information contained in this Security Advisory may lack important information or contain factual errors. Customers are advised to visit the Cisco Security Advisories [\"https://www.cisco.com/go/psirt\"] page for the most recent version of this Security Advisory. The Cisco Product Security Incident Response Team (PSIRT) assesses only the affected and fixed release information that is documented in this advisory. See the Cisco Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] for more information.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "Cisco Support and Downloads",
        "url": "https://www.cisco.com/c/en/us/support/index.html"
      },
      {
        "category": "external",
        "summary": "Cisco Technical Assistance Center (TAC)",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "the advisories",
        "url": "https://www.cisco.com/go/psirt"
      }
    ],
    "title": "Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability",
    "tracking": {
      "current_release_date": "2026-05-06T16:00:00+00:00",
      "generator": {
        "date": "2026-05-06T15:56:15+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-ece-lite-agent-BCgSN8eb",
      "initial_release_date": "2026-05-06T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2026-05-06T15:56:09+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Enterprise Chat and Email",
            "product": {
              "name": "Cisco Enterprise Chat and Email ",
              "product_id": "CSAFPID-256410"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-20172",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCws79262"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-256410"
        ]
      },
      "release_date": "2026-05-06T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-256410"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-256410"
          ]
        }
      ],
      "title": "Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability"
    }
  ]
}

GHSA-RX97-PWC5-6V32

Vulnerability from github – Published: 2026-05-06 18:30 – Updated: 2026-05-06 18:30

Details

This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.

Severity ?

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-20172"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-646"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T17:16:20Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\n\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\u0026nbsp;",
  "id": "GHSA-rx97-pwc5-6v32",
  "modified": "2026-05-06T18:30:31Z",
  "published": "2026-05-06T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20172"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-20172 (GCVE-0-2026-20172)

FKIE_CVE-2026-20172

CISCO-SA-ECE-LITE-AGENT-BCGSN8EB

GHSA-RX97-PWC5-6V32

Tags

Sightings

Nomenclature