CyberCVE

CVE-2025-31366

An Improper Neutralization of Input During Web Page Generation vulnerability [CWE-79] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, Fort

Severity
Medium 4.5
CVSS 3.1
Exploited
Not listed
EPSS
0.004
29.8th percentile
Discovered by
Not disclosed
Published
Oct 14, 2025
Assigned by fortinet

Description

An Improper Neutralization of Input During Web Page Generation vulnerability [CWE-79] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4 all versions, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions, FortiSASE 25.2.a may allow an unauthenticated attacker to perform a reflected cross site scripting (XSS) via crafted HTTP requests.

Weakness: CWE-79

Affected products

Vendor Product Category Matched by
Fortinet FortiOS Firewall / NGFW cna-assigner
Fortinet FortiProxy SASE / SSE / Secure Web cna-assigner
Fortinet FortiSASE SASE / SSE / Secure Web cna-assigner
Vendor-reported affected versions (4)
  • Fortinet · FortiSASE
  • Fortinet · FortiOS
  • Fortinet · FortiProxy
  • Siemens · RUGGEDCOM APE1808

Vendor remediation

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Fortinet remediated this issue in FortiSASE version 25.3.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.4 or above

References