fkie_cve-2021-23974
Vulnerability from fkie_nvd
Published
2021-02-26 02:15
Modified
2024-11-21 05:52
Severity ?
Summary
The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.
References
▼ | URL | Tags | |
---|---|---|---|
security@mozilla.org | https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627 | Issue Tracking, Vendor Advisory | |
security@mozilla.org | https://security.gentoo.org/glsa/202104-10 | Third Party Advisory | |
security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2021-07/ | Release Notes, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627 | Issue Tracking, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202104-10 | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.mozilla.org/security/advisories/mfsa2021-07/ | Release Notes, Vendor Advisory |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "89580DC6-183F-46F0-A27E-4E16D6B10EB6", "versionEndExcluding": "86.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "The DOMParser API did not properly process \u0027\u003cnoscript\u003e\u0027 elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox \u003c 86." }, { "lang": "es", "value": "La API DOMParser no proces\u00f3 apropiadamente los elementos \"(noscript)\" para escapar.\u0026#xa0;Esto podr\u00eda ser usado como un vector mXSS para omitir un Sanitizador HTML.\u0026#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 86" } ], "id": "CVE-2021-23974", "lastModified": "2024-11-21T05:52:07.953", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0" }, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true } ], "cvssMetricV31": [ { "cvssData": { "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" }, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2021-02-26T02:15:13.320", "references": [ { "source": "security@mozilla.org", "tags": [ "Issue Tracking", "Vendor Advisory" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627" }, { "source": "security@mozilla.org", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202104-10" }, { "source": "security@mozilla.org", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Vendor Advisory" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202104-10" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/" } ], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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