CVE-2025-61648

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.TempAccounts/components/ShowIPButton.Vue, modules/ext.CheckUser.TempAccounts/SpecialBlock.Js. This issue affects CheckUser: from * before 1.44.1.

Score

CVSS 3.1 6.1 Medium

Status

Analyzed - c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published

2026-02-03

Last modified

2026-02-03

Weaknesses

CWE-79

Affected products

• Checkuser (Mediawiki)
• Checkuser (Wikimedia Foundation)

References

• https://phabricator.wikimedia.org/T402077