CVE-2015-4721: Concretecms Concrete CMS

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

Multiple cross-site scripting (XSS) vulnerabilities in Concrete5 5.7.3.1.

Affected products

• Concretecms Concrete CMS: version 5.7.3.1 only

Published 2017-09-07. Last modified 2026-06-17.