CVE-2020-25813: Fedoraproject Fedora

Medium severity, CVSS 5.3. EPSS: 1.3% chance of exploitation in the next 30 days.

In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, Special:UserRights exposes the existence of hidden users.

Affected products

• Fedoraproject Fedora: version 33 only
• Mediawiki Mediawiki: before 1.31.10 (fixed in 1.31.10); from 1.32.0, before 1.34.4 (fixed in 1.34.4)

Published 2020-09-27. Last modified 2026-06-17.