CVE-2026-47344CWE-436CWE-79

TYPO3 HTML Sanitizer allows Cross-Site Scripting

Low · published June 8, 2026

CVSS v4.0
2.1
EPSS
0%
Percentile
36.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
2.1 · LOW
Vector
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
EPSS
0.00437 · 36.9th percentile
Weaknesses
CWE-436 · Interpretation Conflict; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-08T19:03Z
EPSS history
Timeline
  • 08 JUN 19:03Z
    TYPO3 HTML Sanitizer allows Cross-Site Scripting
    cvelistv5