CVE-2026-47345 MEDIUM

CVE-2026-47345: TYPO3 HTML Sanitizer allows Cross-Site Scripting

Vendor Typo3

Product HTML Sanitizer

Weakness CWE-79 · XSS

Published June 8, 2026

Last update June 8, 2026

View on NVD All CVEs

CVSS base score

5.1/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction —

Confidentiality —

Integrity —

CVSS vector

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

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

June 8, 2026 CVE published

June 8, 2026 Record updated