PT-2025-27641 · Mediawiki+1 · Mediawiki+1

Somerandomdeveloper · Published 2025-07-02 · Updated 2025-07-02 · CVE-2025-53494

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Mediawiki - TwoColConflict Extension versions 1.39.X through 1.39.12 Mediawiki - TwoColConflict Extension versions 1.42.X through 1.42.6 Mediawiki - TwoColConflict Extension versions 1.43.X through 1.43.1

Description: The issue is related to Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting (XSS). This allows for Stored XSS in the Mediawiki - TwoColConflict Extension.

Recommendations: For versions 1.39.X through 1.39.12, update to version 1.39.13 or later. For versions 1.42.X through 1.42.6, update to version 1.42.7 or later. For versions 1.43.X through 1.43.1, update to version 1.43.2 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-53494

Affected Products

Mediawiki

Twocolconflict Extension

References · 6

• 🔥 https://phabricator.wikimedia.org/T394938 · Exploit
• https://gerrit.wikimedia.org/r/c/mediawiki/extensions/TwoColConflict/+/1150011 · Patch
• https://osv.dev/vulnerability/CVE-2025-53494 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53494 · Security Note
• https://twitter.com/VulmonFeeds/status/1940470983602659603 · Twitter Post
• https://twitter.com/CVEnew/status/1940423934899331282 · Twitter Post