{ "id": "CVE-2021-43530", "sourceIdentifier": "security@mozilla.org", "published": "2021-12-08T22:15:09.257", "lastModified": "2021-12-10T16:56:03.223", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "A Universal XSS vulnerability was present in Firefox for Android resulting from improper sanitization when processing a URL scanned from a QR code. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94." }, { "lang": "es", "value": "Una vulnerabilidad de tipo XSS universal estaba presente en Firefox para Android como resultado de un saneo inapropiado cuando se procesa una URL escaneada desde un c\u00f3digo QR. *Este bug s\u00f3lo afecta a Firefox para Android. Otros sistemas operativos no est\u00e1n afectados*. Esta vulnerabilidad afecta a Firefox versiones anteriores a 94" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 2.7 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 4.3 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "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": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "versionEndExcluding": "94.0", "matchCriteriaId": "A22FDA8A-B862-4383-9C8E-C162713AB01B" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26" } ] } ] } ], "references": [ { "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1736886", "source": "security@mozilla.org", "tags": [ "Issue Tracking", "Permissions Required" ] }, { "url": "https://www.mozilla.org/security/advisories/mfsa2021-48/", "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ] } ] }