CVSS 3.1 Score 5.4 of 10 (medium)


Published Jan 12, 2024
Updated: Jan 18, 2024


CVE-2024-23172 is a vulnerability discovered in the CheckUser extension in MediaWiki versions before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. This vulnerability allows for cross-site scripting (XSS) attacks through message definitions, specifically in SpecialCheckUserLog. It affects multiple products including Xz2hff, Xz2hfe, Xz2hf_, and many others listed in the affected_products section of the vulnerability report. The risk score is rated at 26 out of 100, indicating a medium severity level with low privileges required and user interaction required for exploitation. The impact includes low integrity and confidentiality impacts but no availability impact was identified. Remediation involves updating to MediaWiki versions 1.35.14, 1.39.6, or 1.40.2 to mitigate the vulnerability's potential danger to organizations.

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