CVE-2023-48649: Concretecms Concrete CMS

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows stored XSS on the Admin page via an uploaded file name.

Affected products

• Concretecms Concrete CMS: before 8.5.13 (fixed in 8.5.13); from 9.0, before 9.2.2 (fixed in 9.2.2)

Published 2023-11-17. Last modified 2026-06-17.