CVE-2012-4885: Mediawiki

Medium severity, CVSS 5.0. EPSS: 1.9% chance of exploitation in the next 30 days.

The wikitext parser in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to cause a denial of service (infinite loop) via certain input, as demonstrated by the padleft function.

Affected products

• Mediawiki Mediawiki: version 1.17 only; version 1.17.0 only; version 1.17.1 only; version 1.17.2 only; version 1.18 only; version 1.18.0 only; …

Published 2012-09-09. Last modified 2026-06-16.