CVE-2026-47345CWE-79

TYPO3 HTML Sanitizer allows Cross-Site Scripting

Medium · published June 8, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
37.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
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
EPSS
0.00437 · 37.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-08T19:04Z
EPSS history
Timeline
  • 08 JUN 19:04Z
    TYPO3 HTML Sanitizer allows Cross-Site Scripting
    cvelistv5