CVE-2023-37304: Mediawiki

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in the DoubleWiki extension for MediaWiki through 1.39.3. includes/DoubleWiki.php allows XSS via the column alignment feature.

Affected products

• Mediawiki Mediawiki: up to and including 1.39.3

Published 2023-06-30. Last modified 2026-06-17.