Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-31366

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
14/10/2025
Last modified:
15/10/2025

Description

An Improper Neutralization of Input During Web Page Generation vulnerability [CWE-79] in FortiOS 7.6.0 through 7.6.3, 7.4.0 through 7.4.7, 7.2 all versions, 7.0 all versions, 6.4 all versions; FortiProxy 7.6.0 through 7.6.3, 7.4.0 through 7.4.9, 7.2 all versions, 7.0 all versions; FortiSASE 25.3.a may allow an unauthenticated attacker to perform a reflected cross site scripting (XSS) via crafted HTTP requests.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
4.70
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 6.4.0 (including) 7.4.9 (excluding)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 7.6.0 (including) 7.6.4 (excluding)
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* 7.0.0 (including) 7.6.4 (excluding)
cpe:2.3:a:fortinet:fortisase:25.3.40:*:*:*:feature:*:*:*
cpe:2.3:a:fortinet:fortisase:25.3.40:*:*:*:mature:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools