Riskcovery

CVE-2026-47344

TYPO3 HTML Sanitizer allows Cross-Site Scripting

State
Published
Severity
2.1 Low
Published
Jun 8, 2026
Updated
Jun 8, 2026
Reserved
May 19, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.02.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NTYPO3

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-436 Interpretation Conflict

Affected Products

ProductVersions
HTML SanitizerTYPO3
  • before 2.3.2Affected

References

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