CVE-2021-45474: Fedoraproject Fedora

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter) allows XSS, as demonstrated by the clientUrl parameter.

Affected products

• Fedoraproject Fedora: version 35 only
• Mediawiki Mediawiki: up to and including 1.37

Published 2021-12-24. Last modified 2026-06-17.