🔐 CVE Alert

CVE-2025-31366

MEDIUM 4.5
CVSS Score
4.5
EPSS Score
0.0%
EPSS Percentile
6th

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.

CWE CWE-79
Vendor fortinet
Product fortiproxy
Ecosystems
Industries
NetworkingSecurity
Published Oct 14, 2025
Last Updated Jun 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

Fortinet / FortiProxy
7.6.0 ≤ 7.6.3 7.4.0 ≤ 7.4.8 7.2.0 ≤ 7.2.15 7.0.0 ≤ 7.0.22
Fortinet / FortiSASE
25.2.a
Fortinet / FortiOS
7.6.0 ≤ 7.6.2 7.4.0 ≤ 7.4.7 7.2.0 ≤ 7.2.12 7.0.0 ≤ 7.0.18 6.4.0 ≤ 6.4.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗
fortiguard.fortinet.com: https://fortiguard.fortinet.com/psirt/FG-IR-24-542 cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-864900.html