{ "id": "CVE-2021-39887", "sourceIdentifier": "cve@gitlab.com", "published": "2021-10-05T12:15:07.903", "lastModified": "2021-10-08T19:02:49.400", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "A stored Cross-Site Scripting vulnerability in the GitLab Flavored Markdown in GitLab CE/EE version 8.4 and above allowed an attacker to execute arbitrary JavaScript code on the victim's behalf." }, { "lang": "es", "value": "Una vulnerabilidad de tipo Cross-Site Scripting almacenado en el GitLab Flavored Markdown en GitLab CE/EE versi\u00f3n 8.4 y superior, permit\u00eda a un atacante ejecutar c\u00f3digo JavaScript arbitrario en nombre de la v\u00edctima" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.3, "impactScore": 2.7 }, { "source": "cve@gitlab.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 7.3, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.1, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "SINGLE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 3.5 }, "baseSeverity": "LOW", "exploitabilityScore": 6.8, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-79" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "8.4.0", "versionEndExcluding": "14.1.7", "matchCriteriaId": "43AA0053-AAD2-412F-A7A1-BF43BAEA0AAD" }, { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "8.4.0", "versionEndExcluding": "14.1.7", "matchCriteriaId": "88AA013C-438F-4CEB-9603-37A5F26BF17D" }, { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "14.2", "versionEndExcluding": "14.2.5", "matchCriteriaId": "A3352A07-9A5A-4CA9-B6F6-71BA3A1D4F9C" }, { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "14.2", "versionEndExcluding": "14.2.5", "matchCriteriaId": "CAAC78F3-28E1-4A0D-BA8A-78AE9393B988" }, { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "14.3", "versionEndExcluding": "14.3.1", "matchCriteriaId": "A573FB75-1C20-4E3A-982C-2B422C95BED8" }, { "vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "14.3", "versionEndExcluding": "14.3.1", "matchCriteriaId": "D0EFF286-2716-472C-AB8E-47595940C0B3" } ] } ] } ], "references": [ { "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39887.json", "source": "cve@gitlab.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://hackerone.com/reports/1218174", "source": "cve@gitlab.com", "tags": [ "Permissions Required", "Third Party Advisory" ] } ] }