Skip to content
CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2025-53478

CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate via unsanitized i18n messages

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
wikimedia-foundation

Description

The CheckUser extension’s Special:Investigate interface is vulnerable to reflected XSS due to improper escaping of certain internationalized system messages rendered on the “IPs and User agents” tab. This issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Wikimedia Foundation Mediawiki - CheckUser extension

Default version status: unaffected

  • 1.39.x to < 1.39.13affected
  • 1.42.x to < 1.42.7affected
  • 1.43.x to < 1.43.2affected

References