CVE-2021-47768 (GCVE-0-2021-47768)

Vulnerability from cvelistv5 – Published: 2026-01-15 15:52 – Updated: 2026-01-15 18:27
VLAI?
Title
ImportExportTools NG 10.0.4 - HTML Injection
Summary
ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execute during HTML export, potentially compromising user data or session credentials.
Severity ?
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
thundernest ImportExportTools NG Affected: 10.0.4
Create a notification for this product.
Credits
Vulnerability Lab
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47768",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-15T16:13:13.203284Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-15T18:27:03.728Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.exploit-db.com/exploits/50496"
          },
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.vulnerability-lab.com/get_content.php?id=2308"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ImportExportTools NG",
          "vendor": "thundernest",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.4"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Vulnerability Lab"
        }
      ],
      "datePublic": "2021-11-05T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execute during HTML export, potentially compromising user data or session credentials."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-15T15:52:10.377Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-50496",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/50496"
        },
        {
          "name": "ImportExportTools NG GitHub Repository",
          "tags": [
            "product"
          ],
          "url": "https://github.com/thundernest/import-export-tools-ng"
        },
        {
          "name": "Thunderbird Addon Page",
          "tags": [
            "product"
          ],
          "url": "https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/"
        },
        {
          "name": "Vulnerability-Lab Disclosure",
          "tags": [
            "exploit",
            "technical-description"
          ],
          "url": "https://www.vulnerability-lab.com/get_content.php?id=2308"
        }
      ],
      "title": "ImportExportTools NG 10.0.4 - HTML Injection",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2021-47768",
    "datePublished": "2026-01-15T15:52:10.377Z",
    "dateReserved": "2026-01-14T14:39:44.735Z",
    "dateUpdated": "2026-01-15T18:27:03.728Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47768\",\"sourceIdentifier\":\"disclosure@vulncheck.com\",\"published\":\"2026-01-15T16:16:08.340\",\"lastModified\":\"2026-01-30T20:00:04.870\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execute during HTML export, potentially compromising user data or session credentials.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/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\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"PASSIVE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"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\"}}],\"cvssMetricV31\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cleidigh:importexporttools_ng:10.0.4:*:*:*:*:thunderbird:*:*\",\"matchCriteriaId\":\"3193CE4D-DBFF-43E5-B537-2A73DDC26DBD\"}]}]}],\"references\":[{\"url\":\"https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Product\"]},{\"url\":\"https://github.com/thundernest/import-export-tools-ng\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Product\"]},{\"url\":\"https://www.exploit-db.com/exploits/50496\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Exploit\"]},{\"url\":\"https://www.vulnerability-lab.com/get_content.php?id=2308\",\"source\":\"disclosure@vulncheck.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.exploit-db.com/exploits/50496\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\"]},{\"url\":\"https://www.vulnerability-lab.com/get_content.php?id=2308\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47768\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-15T16:13:13.203284Z\"}}}], \"references\": [{\"url\": \"https://www.exploit-db.com/exploits/50496\", \"tags\": [\"exploit\"]}, {\"url\": \"https://www.vulnerability-lab.com/get_content.php?id=2308\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-15T16:13:17.618Z\"}}], \"cna\": {\"title\": \"ImportExportTools NG 10.0.4 - HTML Injection\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Vulnerability Lab\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.3, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"LOW\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"thundernest\", \"product\": \"ImportExportTools NG\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.4\"}]}], \"datePublic\": \"2021-11-05T00:00:00.000Z\", \"references\": [{\"url\": \"https://www.exploit-db.com/exploits/50496\", \"name\": \"ExploitDB-50496\", \"tags\": [\"exploit\"]}, {\"url\": \"https://github.com/thundernest/import-export-tools-ng\", \"name\": \"ImportExportTools NG GitHub Repository\", \"tags\": [\"product\"]}, {\"url\": \"https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/\", \"name\": \"Thunderbird Addon Page\", \"tags\": [\"product\"]}, {\"url\": \"https://www.vulnerability-lab.com/get_content.php?id=2308\", \"name\": \"Vulnerability-Lab Disclosure\", \"tags\": [\"exploit\", \"technical-description\"]}], \"x_generator\": {\"engine\": \"vulncheck\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execute during HTML export, potentially compromising user data or session credentials.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2026-01-15T15:52:10.377Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47768\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-15T18:27:03.728Z\", \"dateReserved\": \"2026-01-14T14:39:44.735Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-01-15T15:52:10.377Z\", \"assignerShortName\": \"VulnCheck\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.