CVE-2025-31366CWE-79cross-site-scripting

CVE-2025-31366

Medium · published October 14, 2025

CVSS v3.1
4.7
EPSS
0%
Percentile
33.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00401 · 33.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-10-14T20:15Z
Affected products (5)
ProductVersionsFixed in
fortinet/fortios≥ 6.4.0, < 7.4.97.4.9
fortinet/fortios≥ 7.6.0, < 7.6.47.6.4
fortinet/fortiproxy≥ 7.0.0, < 7.6.47.6.4
fortinet/fortisaseall versions—
fortinet/fortisaseall versions—
References (2)
https://fortiguard.fortinet.com/psirt/FG-IR-24-542 · [email protected]https://cert-portal.siemens.com/productcert/html/ssa-864900.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 14 OCT 15:22Z
    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…
    cvelistv5