CVE-2026-58038: Mediawiki

Medium severity, CVSS 6.1. 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 Wikimedia Foundation timeline. This vulnerability is associated with program files includes/Timeline.Php, scripts/EasyTimeline.Pl. This issue affects timeline: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Affected products

• Mediawiki Mediawiki: from 1.43.0, before 1.43.9 (fixed in 1.43.9); from 1.44.0, before 1.44.6 (fixed in 1.44.6); from 1.45.0, before 1.45.4 (fixed in 1.45.4); version 1.46.0 only

Published 2026-07-01. Last modified 2026-07-09.