CVE-2023-38500

CVSS 3.1 Score 6.1 of 10 (medium)

Details

Published Jul 25, 2023
Updated: Aug 2, 2023
CWE ID 79

Summary

CVE-2023-38500 is a vulnerability affecting the TYPO3 HTML Sanitizer, an HTML sanitizer written in PHP used to provide cross-site scripting (XSS) safe markup based on allowed tags, attributes, and values. The issue lies in the serialization layer, where malicious markup nested within a `noscript` tag was not encoded correctly. Although `noscript` is disabled by default, it may have been enabled in some custom configurations. Consequently, attackers could bypass the XSS protection mechanism of TYPO3 HTML Sanitizer. Versions 1.5.1 and 2.1.2 have been released to address this vulnerability.

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Affected Products

  • Typo3 Html Sanitizer

Affected Vendors

  • TYPO3

Advisories, Assessments, and Mitigations

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