CVE-2025-61651 NONE

CVE-2025-61651: i18n XSS through Special:CheckUser CheckUser helper

Vendor Wikimedia Foundation
Product CheckUser
Weakness CWE-79 · XSS
Published February 3, 2026
Last update February 3, 2026
View on NVD All CVEs

CVSS base score

0.0/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files modules/ext.CheckUser/checkuser/checkUserHelper/buildUserElement.Js. This issue affects CheckUser: from * before 1.44.1.

Key dates

02Disclosure timeline

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