CVE-2023-44252: Fortinet Fortiwan

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

** UNSUPPORTED WHEN ASSIGNED **An improper authentication vulnerability [CWE-287] in Fortinet FortiWAN version 5.2.0 through 5.2.1 and version 5.1.1 through 5.1.2 may allow an authenticated attacker to escalate his privileges via HTTP or HTTPs requests with crafted JWT token values.

Affected products

• Fortinet Fortiwan: version 5.1.1 only; version 5.1.2 only; version 5.2.0 only; version 5.2.1 only

Published 2023-12-13. Last modified 2026-06-17.