CVE-2021-32602: Fortinet Fortiportal

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

An improper neutralization of input during web page generation vulnerability (CWE-79) in FortiPortal GUI 6.0.4 and below, 5.3.6 and below, 5.2.6 and below, 5.1.2 and below, 5.0.3 and below, 4.2.2 and below, 4.1.2 and below, 4.0.4 and below may allow a remote and unauthenticated attacker to perform an XSS attack via sending a crafted request with an invalid lang parameter or with an invalid org.springframework.web.servlet.i18n.CookieLocaleResolver.LOCALE value.

Affected products

• Fortinet Fortiportal: from 4.0.0, up to and including 4.0.4; from 4.1.0, up to and including 4.1.2; from 4.2.0, up to and including 4.2.2; from 5.0.0, up to and including 5.0.3; from 5.1.0, up to and including 5.1.2; from 5.2.0, up to and including 5.2.6; …

Published 2021-08-19. Last modified 2026-06-17.