Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortios | >= 6.4.0, < 7.4.9 |
| Fortinet | Fortiproxy | >= 7.0.0, < 7.6.4 |
| Fortinet | Fortisase | 25.3.40 |
Related Weaknesses (CWE)
References
- https://fortiguard.fortinet.com/psirt/FG-IR-24-542Vendor Advisory
FAQ
What is CVE-2025-31366?
CVE-2025-31366 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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, Fort...
How severe is CVE-2025-31366?
CVE-2025-31366 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-31366?
Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortios, Fortinet Fortiproxy, Fortinet Fortisase.