CVE-2017-7733: Fortinet FortiOS

Medium severity, CVSS 6.1. EPSS: 1.3% chance of exploitation in the next 30 days.

A Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.4.0 to 5.4.5 and 5.6.0 allows a remote unauthenticated attacker to execute arbitrary javascript code via webUI "Login Disclaimer" redir parameter.

Affected products

• Fortinet FortiOS: version 5.4.0 only; version 5.4.1 only; version 5.4.2 only; version 5.4.3 only; version 5.4.4 only; version 5.4.5 only; …

Published 2017-10-27. Last modified 2026-06-17.