CVE-2026-58519: Mediawiki Cargo

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS. This issue affects Mediawiki - Cargo Extension: from * before 3.9.1.

Affected products

• Mediawiki Cargo: before 3.9.1 (fixed in 3.9.1)

Published 2026-07-01. Last modified 2026-07-06.