CVE-2007-0552: Oh No Not Another CMS

Medium severity, CVSS 6.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in install/default/error404.html in Oh no! Not another CMS (Onnac) 0.0.8.4 and earlier allows remote attackers to inject arbitrary web script or HTML via the error_url parameter.

Affected products

• Oh No Not Another CMS Oh No Not Another CMS: version 0.0.8.4 only

Published 2007-01-29. Last modified 2026-06-16.