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CVE-2025-31366

Published: Oct 14, 2025Updated: Jun 9, 2026 Sources: CVE List NVD BDU csafCWE-79
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
0.4%
Top 71.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

FortiOSFortinet Inc.Security Products
FortiProxyFortinet Inc.Security Products
FortiSASEFortinet Inc.Security Products
fortiosfortinetSecurity Products
fortiproxyfortinetSecurity Products
fortinet inc.commercialUSNetworking Infrastructureaka fortinet
fortinetcommercialUSSecurity Productsaka forti net
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-542
fortiguard.fortinet.com
https://cert-portal.siemens.com/productcert/html/ssa-864900.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-864900.json
cert-portal.siemens.com
and 65 more references View all →

Timeline

Published
Oct 14, 2025
Last Updated
Jun 9, 2026

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