CVE-2011-4558: Tiki

High severity, CVSS 7.2. EPSS: 4.3% chance of exploitation in the next 30 days.

Tiki 8.2 and earlier allows remote administrators to execute arbitrary PHP code via crafted input to the regexres and regex parameters.

Affected products

• Tiki Tiki: up to and including 8.2

Published 2020-01-27. Last modified 2026-06-16.