Sensitive Information Exposure in MediaWiki by Wikimedia Foundation

CVE-2025-6590

What is CVE-2025-6590?

A vulnerability in Wikimedia Foundation's MediaWiki allows unauthorized actors to access sensitive information through a flaw in the program files, specifically in includes/htmlform/fields/HTMLUserTextField.php. This issue potentially exposes user data and could lead to privacy violations. Users are encouraged to review their MediaWiki installations to ensure they are not using affected versions ranging from unspecified versions to 1.44.0.

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References