CVE-2025-62693: The Wikimedia Foundation Mediawiki - Lastmodified Extension

Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - LastModified Extension allows Stored XSS.This issue affects Mediawiki - LastModified Extension: from master before 1.39.

Affected products

• The Wikimedia Foundation Mediawiki - Lastmodified Extension

Published 2025-10-20. Last modified 2026-10-08.