CVE-2024-23174: Mediawiki

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in the PageTriage extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via the rev-deleted-user, pagetriage-tags-quickfilter-label, pagetriage-triage, pagetriage-filter-date-range-format-placeholder, pagetriage-filter-date-range-to, pagetriage-filter-date-range-from, pagetriage-filter-date-range-heading, pagetriage-filter-set-button, or pagetriage-filter-reset-button message.

Affected products

• Mediawiki Mediawiki: before 1.35.14 (fixed in 1.35.14); from 1.36.0, before 1.39.6 (fixed in 1.39.6); from 1.40.0, before 1.40.2 (fixed in 1.40.2)

Published 2024-01-12. Last modified 2026-06-17.