CVE-2021-36180: Fortinet FortiWeb

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Multiple improper neutralization of special elements used in a command vulnerabilities [CWE-77] in FortiWeb management interface 6.4.1 and below, 6.3.15 and below, 6.2.5 and below may allow an authenticated attacker to execute unauthorized code or commands via crafted parameters of HTTP requests.

Affected products

• Fortinet FortiWeb: from 5.8.0, up to and including 5.8.6; from 6.0.0, up to and including 6.0.7; from 6.2.0, up to and including 6.2.5; from 6.3.0, up to and including 6.3.15; version 5.9.0 only; version 5.9.1 only; …

Published 2021-12-08. Last modified 2026-06-17.