CVE-2025-54353: Fortinet FortiSandbox

Medium severity, CVSS 6.1. EPSS: 6.3% chance of exploitation in the next 30 days.

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an attacker to perform an XSS attack via crafted HTTP requests.

Affected products

• Fortinet FortiSandbox: from 4.0.0, up to and including 4.0.6; from 4.2.0, up to and including 4.2.8; from 4.4.0, up to and including 4.4.7; from 5.0.0, up to and including 5.0.2

Published 2025-12-09. Last modified 2026-10-08.