CVE-2018-0503: Debian Linux

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.

Affected products

• Debian Debian Linux: version 9.0 only
• Mediawiki Mediawiki: from 1.31.0, before 1.31.1 (fixed in 1.31.1); version 1.27.5 only; version 1.29.3 only; version 1.30.1 only

Published 2018-10-04. Last modified 2026-06-17.