CVE-2026-39812 — MEDIUM (4.8)

Q: How severe is CVE-2026-39812?

CVE-2026-39812 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-39812?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortisandbox, Fortinet Fortisandbox Cloud.

Vulnerability Description

A improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox PaaS 5.0.0 through 5.0.5, FortiSandbox PaaS 4.4.0 through 4.4.8, FortiSandbox PaaS 4.2 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

CVSS Score

4.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Fortinet	Fortisandbox	>= 4.2.0, <= 4.2.8
Fortinet	Fortisandbox Cloud	>= 22.2.4134, <= 23.1.4260

Related Weaknesses (CWE)

CWE-79

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-110Vendor Advisory

FAQ

What is CVE-2026-39812?

CVE-2026-39812 is a vulnerability with a CVSS score of 4.8 (MEDIUM). A improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 al...

How severe is CVE-2026-39812?

CVE-2026-39812 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-39812?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortisandbox, Fortinet Fortisandbox Cloud.