What’s Vulnerable › Vulnerabilities

CVE-2025-53496: Stored XSS in MediaSearch

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-07 · updated 2026-06-17
• Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MediaSearch Extension allows Stored XSS.This issue affects Mediawiki - MediaSearch Extension: from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Affected products

• Wikimedia Foundation Mediawiki - MediaSearch Extension: from 1.42.x before 1.42.7; from 1.43.x before 1.43.2 — fixed in 1.42.7, 1.43.2

How to fix

Upgrade to a fixed version: Wikimedia Foundation Mediawiki - MediaSearch Extension 1.42.7, 1.43.2. Check the vendor advisory for mitigations.

References

• https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MediaSearch/+/1166030
• https://phabricator.wikimedia.org/T396946

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