CVE-2025-31366

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.7 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
fortinetCNA
4.5 MEDIUM
NETWORK
HIGH
NONE
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
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
VendorProductVersion
fortinetfortios
6.4.0 ≤
𝑥
< 7.4.9
fortinetfortios
7.6.0 ≤
𝑥
< 7.6.4
fortinetfortiproxy
7.0.0 ≤
𝑥
< 7.6.4
fortinetfortisase
25.3.40
fortinetfortisase
25.3.40
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://fortiguard.fortinet.com/psirt/FG-IR-24-542