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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2025-53487

ApprovedRevs: Stored Cross-Site Scripting (XSS) via unsanitized system messages

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Status
Published
Published
Updated
Assigning organization
wikimedia-foundation

Description

The ApprovedRevs extension for MediaWiki is vulnerable to stored XSS in multiple locations where system messages are inserted into raw HTML without proper escaping. Attackers can exploit this by injecting JavaScript payloads via the uselang=x-xss language override, which causes crafted message keys to be rendered unescaped. This issue affects Mediawiki - ApprovedRevs 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 - ApprovedRevs 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