Low 2.1Published Jun 8, 2026

CVE-2026-47344TYPO3 HTML Sanitizer allows Cross-Site Scripting

Updated under an hour ago (Oct 27, 2026, 4:20 PM ET)

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It affects TYPO3 HTML Sanitizer. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for TYPO3 HTML Sanitizer

Exploited in the last 30 days

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.

CVSS: 2.1 LOW (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Weakness (CWE): CWE-79, CWE-436
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TYPO3
NVD analysis: Deferred
Record last updated: Jun 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TYPO3 HTML Sanitizer typo3:html_sanitizer (from the name)	before 2.3.2	CNA record

References

References

https://typo3.org/security/advisory/typo3-core-sa-2026-006	vendor-advisory
https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.