CVE-2025-61682: Semanticmediawiki

High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Versions starting in 3.1.0 and prior to 7.0.0 insert the unsanitized value of a data attribute into the DOM as HTML, allowing for stored XSS through wikitext. Version 7.0.0 patches the issue.

Affected products

• Semanticmediawiki Semanticmediawiki: from 3.1.0, before 7.0.0 (fixed in 7.0.0)

Published 2026-09-18. Last modified 2026-09-24.