vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-47344

TYPO3 HTML Sanitizer allows Cross-Site Scripting

LOW
2.1
CVSS Score
Published: June 8, 2026 at 07:03 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
1 product affected across 1 vendorHtml Sanitizer

Using HTML Sanitizer by TYPO3?

Get instant alerts when new vulnerabilities affect HTML Sanitizer - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
LOW2.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Html Sanitizer· TYPO3composer
95%
v < 2.3.2
Affected range stops below 2.3.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://typo3.org/security/advisory/typo3-core-sa-2026-006
Patch
Source: cverecord
https://github.com/TYPO3/html-sanitizer/commit/bd1a88d9b5a5f67f1120ec41084e9c1a0675641c

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.1LOWTYPO3
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-436

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card