CVE-2019-17651: Fortinet Fortisiem

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in FortiSIEM version 5.2.5 and below may allow a remote authenticated attacker to perform a Stored Cross Site Scripting attack (XSS) by injecting malicious JavaScript code into the description field of a Device Maintenance schedule.

Affected products

• Fortinet Fortisiem: up to and including 5.2.5

Published 2020-01-28. Last modified 2026-06-17.