CVE-2021-3745: Flatcore Flatcore-CMS

Medium severity, CVSS 6.6. EPSS: 1.1% chance of exploitation in the next 30 days.

flatcore-cms is vulnerable to Unrestricted Upload of File with Dangerous Type

Affected products

• Flatcore Flatcore-CMS: before 2.1.0 (fixed in 2.1.0)

Published 2021-10-28. Last modified 2026-06-17.