Vulnerability-Lookup

CVE-2026-4765 (GCVE-0-2026-4765)

Vulnerability from cvelistv5 – Published: 2026-07-13 10:16 – Updated: 2026-07-13 13:14

Title

Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas

Summary

Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the ‘name’ parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-13 13:14 UTC

CWE

CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')

Assigner

INCIBE

References

1 reference

URL	Tags
https://www.incibe.es/en/incibe-cert/notices/avis…

Impacted products

1 product

Vendor	Product	Version
RD Station Conversas	Tallos Chat	Affected: all versions

Date Public

2026-07-13 09:55

Credits

Leopoldo Angulo Gallego

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4765",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-13T13:14:09.748715Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-13T13:14:19.490Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS",
            "Linux",
            "Android",
            "iOS"
          ],
          "product": "Tallos Chat",
          "vendor": "RD Station Conversas",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:macos:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:linux:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:android:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:ios:*:*:*:*:*",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Leopoldo Angulo Gallego"
        }
      ],
      "datePublic": "2026-07-13T09:55:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application."
            }
          ],
          "value": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-13T10:16:33.027Z",
        "orgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516",
        "shortName": "INCIBE"
      },
      "references": [
        {
          "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516",
    "assignerShortName": "INCIBE",
    "cveId": "CVE-2026-4765",
    "datePublished": "2026-07-13T10:16:33.027Z",
    "dateReserved": "2026-03-24T11:45:47.723Z",
    "dateUpdated": "2026-07-13T13:14:19.490Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-4765",
      "date": "2026-08-16",
      "epss": "0.00272",
      "percentile": "0.19685"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-4765\",\"sourceIdentifier\":\"cve-coordination@incibe.es\",\"published\":\"2026-07-13T11:16:27.450\",\"lastModified\":\"2026-07-13T18:05:36.130\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\"}],\"affected\":[{\"source\":\"cve-coordination@incibe.es\",\"affectedData\":[{\"vendor\":\"RD Station Conversas\",\"product\":\"Tallos Chat\",\"defaultStatus\":\"unaffected\",\"platforms\":[\"Windows\",\"MacOS\",\"Linux\",\"Android\",\"iOS\"],\"versions\":[{\"version\":\"all versions\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cve-coordination@incibe.es\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-13T13:14:09.748715Z\",\"id\":\"CVE-2026-4765\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cve-coordination@incibe.es\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas\",\"source\":\"cve-coordination@incibe.es\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-4765\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-13T13:14:09.748715Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-13T13:14:14.954Z\"}}], \"cna\": {\"title\": \"Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Leopoldo Angulo Gallego\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"RD Station Conversas\", \"product\": \"Tallos Chat\", \"versions\": [{\"status\": \"affected\", \"version\": \"all versions\"}], \"platforms\": [\"Windows\", \"MacOS\", \"Linux\", \"Android\", \"iOS\"], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-07-13T09:55:00.000Z\", \"references\": [{\"url\": \"https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \\u2018name\\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \\u2018name\\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:windows:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:macos:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:linux:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:android:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:ios:*:*:*:*:*\", \"vulnerable\": true}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"0cbda920-cd7f-484a-8e76-bf7f4b7f4516\", \"shortName\": \"INCIBE\", \"dateUpdated\": \"2026-07-13T10:16:33.027Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-4765\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-13T13:14:19.490Z\", \"dateReserved\": \"2026-03-24T11:45:47.723Z\", \"assignerOrgId\": \"0cbda920-cd7f-484a-8e76-bf7f4b7f4516\", \"datePublished\": \"2026-07-13T10:16:33.027Z\", \"assignerShortName\": \"INCIBE\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-4765

Vulnerability from fkie_nvd - Published: 2026-07-13 11:16 - Updated: 2026-07-13 18:05

Severity

5.1 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Summary

References

	URL	Tags
	cve-coordination@incibe.es	https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS",
            "Linux",
            "Android",
            "iOS"
          ],
          "product": "Tallos Chat",
          "vendor": "RD Station Conversas",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "source": "cve-coordination@incibe.es"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application."
    }
  ],
  "id": "CVE-2026-4765",
  "lastModified": "2026-07-13T18:05:36.130",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cve-coordination@incibe.es",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-4765",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-13T13:14:09.748715Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-13T11:16:27.450",
  "references": [
    {
      "source": "cve-coordination@incibe.es",
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas"
    }
  ],
  "sourceIdentifier": "cve-coordination@incibe.es",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "cve-coordination@incibe.es",
      "type": "Secondary"
    }
  ]
}

GHSA-VR42-524G-49W2

Vulnerability from github – Published: 2026-07-13 12:35 – Updated: 2026-07-13 12:35

Details

Severity

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4765"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-13T11:16:27Z",
    "severity": "MODERATE"
  },
  "details": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.",
  "id": "GHSA-vr42-524g-49w2",
  "modified": "2026-07-13T12:35:06Z",
  "published": "2026-07-13T12:35:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4765"
    },
    {
      "type": "WEB",
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-4765 (GCVE-0-2026-4765)

FKIE_CVE-2026-4765

GHSA-VR42-524G-49W2

Tags

Sightings

Nomenclature