PT-2025-41951 · Fortinet · Fortisase+2

Published 2025-10-14 · Updated 2025-10-16 · CVE-2025-31366

Positive Technologies (AI Summary)

CVSS v2.0

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions FortiOS versions 6.4 through 7.6.3 FortiProxy versions 7.0 through 7.6.3 FortiSASE version 25.3.a

Description An Improper Neutralization of Input During Web Page Generation issue exists in FortiOS, FortiProxy, and FortiSASE. This allows an unauthenticated attacker to perform a reflected cross-site scripting (XSS) attack via crafted HTTP requests.

Recommendations FortiOS versions prior to 7.6.3 FortiProxy versions prior to 7.6.3 FortiSASE version 25.3.a

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2025-14858

CVE-2025-31366

Affected Products

Fortios

Fortiproxy

Fortisase

References · 8

• https://osv.dev/vulnerability/CVE-2025-31366 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-14858 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-31366 · Security Note
• https://fortiguard.fortinet.com/psirt/FG-IR-24-542 · Vendor Advisory
• https://twitter.com/CVEnew/status/1978932601235857584 · Twitter Post
• https://t.me/CVEtracker/34861 · Telegram Post
• https://t.me/cveNotify/138576 · Telegram Post
• https://t.me/cveNotify/138821 · Telegram Post