CVE-2024-47840: Wikimedia Apex

Medium severity, CVSS 4.8. 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 - Apex skin allows Stored XSS.This issue affects Mediawiki - Apex skin: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.

Affected products

• Wikimedia Apex: from 1.13.0, before 1.39.9 (fixed in 1.39.9); from 1.41.0, before 1.41.3 (fixed in 1.41.3); from 1.42.0, before 1.42.2 (fixed in 1.42.2)

Published 2024-10-05. Last modified 2026-06-17.