CVE-2026-47345

published 2026-06-08

CVE-2026-47345: Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of…

Priority P4 26 medium 5.1 CVSS 4.0

AV N AC L AT N PR L UI P VC N VI N VA N SC L SI L SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
typo3	html-sanitizer	>= 0 < 2.3.2	2.3.2
typo3	html_sanitizer	< 2.3.2	2.3.2

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CWE-79