{"id":"CVE-2026-47344","aliases":["GHSA-jvf5-rxvv-3mcg"],"url":"https://o3.security/vulnerability/CVE-2026-47344","summary":"TYPO3 HTML Sanitizer allows Cross-Site Scripting","details":"When ALLOW_INSECURE_RAW_TEXT is enabled, whitespace-variant closing tags (e.g., </style\\t>) are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.","published":"2026-06-08T19:03:19.826Z","modified":"2026-08-12T03:51:39.220722629Z","cvss":null,"epss":{"score":0.00282,"percentile":0.20124,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"typo3/html-sanitizer","fixedVersion":"2.3.2"}],"fix":{"url":"https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c","label":"TYPO3/html-sanitizer@bd1a88d"},"references":[{"type":"WEB","url":"https://packagist.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47344.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47344"},{"type":"ADVISORY","url":"https://typo3.org/security/advisory/typo3-core-sa-2026-006"},{"type":"FIX","url":"https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c"},{"type":"PACKAGE","url":"https://github.com/TYPO3/html-sanitizer"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:39.220722629Z"}}