CVE-2025-31366

MEDIUM EPSS 29.3%

Published Oct 14, 20258mo ago · Modified Jun 17, 20261w ago

6.1 CVSS 3.1

Medium

Published Oct 14, 2025 8mo ago

Last Modified Jun 17, 2026 1w ago

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 Details

Base Score

6.1

Exploitability

2.8

Impact

2.7

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

29.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 5

Vendor	Product	Version	Range
fortinet	fortios	*	≥6.4.0 – <7.4.9
fortinet	fortios	*	≥7.6.0 – <7.6.4
fortinet	fortiproxy	*	≥7.0.0 – <7.6.4
fortinet	fortisase	25.3.40	any
fortinet	fortisase	25.3.40	any

References 2

cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-864900.html
fortiguard.fortinet.com https://fortiguard.fortinet.com/psirt/FG-IR-24-542

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.