CVE-2011-3183: Concretecms Concrete CMS

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

A Cross-Site Scripting (XSS) vulnerability exists in the rcID parameter in Concrete CMS 5.4.1.1 and earlier.

Affected products

• Concretecms Concrete CMS: up to and including 5.4.1.1

Published 2020-01-14. Last modified 2026-06-16.