Cross-site scripting in FortiSandbox - CVE-2026-39812
Published: April 15, 2026
Vulnerability identifier: #VU126115
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-39812
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiSandbox
FortiSandbox
Detailed vulnerability description
The vulnerability allows a remote privileged user to read and manipulate data.
The vulnerability exists due to improper neutralization of input during web page generation. A privileged attacker can perform a stored XSS attack via crafted HTTP requests.
How to mitigate CVE-2026-39812
Install update from vendor's website.