CVE-2017-7321: Modx Revolution

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

setup/controllers/welcome.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the config_key parameter to the setup/index.php?action=welcome URI.

Affected products

• Modx Modx Revolution: up to and including 2.5.4

Published 2017-03-30. Last modified 2026-06-17.