{"id":"CVE-2026-47344","aliases":["GHSA-jvf5-rxvv-3mcg"],"title":"TYPO3 HTML Sanitizer allows Cross-site Scripting","summary":"TYPO3 HTML Sanitizer allows Cross-site Scripting","severity":"low","cwe":["CWE-79"],"vendor":"typo3","product":"typo3/html-sanitizer","ecosystem":"composer","affected":["typo3/html-sanitizer < 2.3.2"],"patched":["typo3/html-sanitizer 2.3.2"],"published":"2026-06-12","updated":"2026-06-12","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-jvf5-rxvv-3mcg","references":[{"url":"https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-jvf5-rxvv-3mcg"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47344"},{"url":"https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c"},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/html-sanitizer/CVE-2026-47344.yaml"},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2026-006"},{"url":"https://github.com/advisories/GHSA-jvf5-rxvv-3mcg"}],"tags":["ghsa","composer"],"epss":0.00437,"epssPercentile":0.35385,"ingestedAt":"2026-07-07T15:41:59.211Z","slug":"CVE-2026-47344","body":"## Overview\n\nWhen `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.\n\nCredits to IPC Labs for reporting this vulnerability.\n\n## Affected packages\n\n- `typo3/html-sanitizer < 2.3.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `typo3/html-sanitizer 2.3.2`","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}