CVE-2020-25827: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.

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.