CVE-2025-53487 - CVE House
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Status published Unknown CVE-2025-53487

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

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Wikimedia Foundation

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Affected Software

Mediawiki - ApprovedRevs extension
Vulnerable Versions:
1.39.x, 1.42.x, 1.43.x

Timeline

Official Publish: July 7th, 2025
Last Modified: July 7th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)