CVE-2024-40597: Mediawiki

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in the CheckUser extension for MediaWiki through 1.42.1. It can expose suppressed information for log events. (The log_deleted attribute is not respected.)

Affected products

• Mediawiki Mediawiki: up to and including 1.42.1

Published 2024-07-07. Last modified 2026-06-17.