CVE-2025-61649: Wikimedia Foundation Checkuser

Low severity, CVSS 1.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Services/CheckUserUserInfoCardService.Php. This issue affects CheckUser: from 7cedd58781d261f110651b6af4f41d2d11ae7309.

Affected products

• Wikimedia Foundation Checkuser

Published 2026-02-03. Last modified 2026-06-17.