CVE-2019-15706: Fortinet FortiOS

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

An improper neutralization of input during web page generation in the SSL VPN portal of FortiProxy version 2.0.0, version 1.2.9 and below and FortiOS version 6.2.1 and below, version 6.0.8 and below, version 5.6.12 may allow a remote authenticated attacker to perform a stored cross site scripting attack (XSS).

Affected products

• Fortinet FortiOS: from 5.6.0, before 5.6.13 (fixed in 5.6.13); from 6.0.0, before 6.0.9 (fixed in 6.0.9); from 6.2.0, before 6.2.2 (fixed in 6.2.2)
• Fortinet FortiProxy: from 1.2.0, up to and including 1.2.9; version 2.0.0 only

Published 2025-03-17. Last modified 2026-06-17.