CVE-2021-3846: Firefly-Iii Firefly Iii

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

firefly-iii is vulnerable to Unrestricted Upload of File with Dangerous Type

Affected products

• Firefly-Iii Firefly Iii: before 5.6.2 (fixed in 5.6.2)

Published 2021-10-19. Last modified 2026-06-17.