CVE-2023-37305: Mediawiki

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue was discovered in the ProofreadPage (aka Proofread Page) extension for MediaWiki through 1.39.3. In includes/Page/PageContentHandler.php and includes/Page/PageDisplayHandler.php, hidden users can be exposed via public interfaces.

Affected products

• Mediawiki Mediawiki: up to and including 1.39.3

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