CVE-2025-61658 LOW

CVE-2025-61658: Special:GlobalContributions shows edits on wikis the viewer doesn't have access to

Vendor Wikimedia Foundation
Product CheckUser
Published February 3, 2026
Last update March 3, 2026

CVSS base score

1.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U

What the vulnerability does

01Description

Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/GlobalContributions/GlobalContributionsPager.Php. This issue affects CheckUser: from * before 1.43.4, 1.44.1.

Key dates

02Disclosure timeline

February 3, 2026 CVE published
March 3, 2026 Record updated