{"id":"CVE-2020-6802","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-6802","generatedAt":"2026-10-27T23:29:00.794Z","title":"In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.","description":"In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.","published":"2020-03-24T22:15:13.000Z","lastModified":"2026-06-17T03:23:50.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["mozilla/bleach","fedoraproject/fedora"],"epss":{"score":0.01731,"percentile":0.77452,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.73%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://advisory.checkmarx.net/advisory/CX-2020-4276","tags":["Exploit","Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5r","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72R4VFFHDRSQMNT7IZU3X2755ZP4HGNI/","source":"security@mozilla.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCNLM2MGQTOLCIVVYS2Z5S7KOQJR5JC4/","source":"security@mozilla.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTULPQB7HVPPYWEYVNHJGDTSPVIDHIZX/","source":"security@mozilla.org"},{"url":"https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach","tags":["Exploit","Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://advisory.checkmarx.net/advisory/CX-2020-4276","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5r","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72R4VFFHDRSQMNT7IZU3X2755ZP4HGNI/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCNLM2MGQTOLCIVVYS2Z5S7KOQJR5JC4/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTULPQB7HVPPYWEYVNHJGDTSPVIDHIZX/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-6802","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}