CVE-2019-18612: Mediawiki Abusefilter

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

An issue was discovered in the AbuseFilter extension through 1.34 for MediaWiki. Previously hidden (restricted) AbuseFilter filters were viewable (or their differences were viewable) to unprivileged users, thus disclosing potentially sensitive information.

Affected products

• Mediawiki Abusefilter: up to and including 1.34

Published 2019-10-29. Last modified 2026-06-17.