CVE-2021-41403: Flatcore Flatcore-CMS

Critical severity, CVSS 9.8. EPSS: 19.1% chance of exploitation in the next 30 days.

flatCore-CMS version 2.0.8 calls dangerous functions, causing server-side request forgery vulnerabilities.

Affected products

• Flatcore Flatcore-CMS: version 2.0.8 only

Published 2022-06-15. Last modified 2026-06-17.