Vulnerability in Wikimedia Foundation's CheckUser Tool

CVE-2025-61647

What is CVE-2025-61647?

A vulnerability exists within the Wikimedia Foundation's CheckUser tool, specifically in the src/Api/Rest/Handler/UserInfoHandler.php file. This flaw could potentially allow unauthorized users to access sensitive information, undermining the tool's integrity by bypassing expected authorization mechanisms. The affected versions include specific commits, which if not addressed, may compromise user data security.

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References