{"id":"CVE-2022-36020","aliases":["GHSA-47m6-46mj-p235"],"url":"https://o3.security/vulnerability/CVE-2022-36020","summary":"Bypass of Cross-Site Scripting Protection in typo3/html-sanitizer","details":"The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package `masterminds/html5`, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of `typo3/html-sanitizer`. This issue has been addressed in versions 1.0.7 and 2.0.16 of the `typo3/html-sanitizer` package. Users are advised to upgrade. There are no known workarounds for this issue.","published":"2022-09-13T16:55:10Z","modified":"2026-08-12T03:51:37.310383025Z","cvss":{"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"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"typo3/html-sanitizer","fixedVersion":"1.0.7"},{"ecosystem":"Packagist","name":"typo3/html-sanitizer","fixedVersion":"2.0.16"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"10.4.32"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"11.5.16"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"10.4.32"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"11.5.16"}],"fix":{"url":"https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493","label":"TYPO3/html-sanitizer@60bfdc7"},"references":[{"type":"WEB","url":"https://packagist.org/packages/masterminds/html5"},{"type":"WEB","url":"https://packagist.org/packages/typo3/html-sanitizer"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36020.json"},{"type":"ADVISORY","url":"https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-36020"},{"type":"FIX","url":"https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:37.310383025Z"}}