CVE-2021-36132: Mediawiki

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

An issue was discovered in the FileImporter extension in MediaWiki through 1.36. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations (specifically file uploads) that they should not be allowed to perform.

Affected products

• Mediawiki Mediawiki: up to and including 1.36

Published 2021-07-02. Last modified 2026-06-17.