Vulnerability · Published Apr 14, 2026 · Assigned by fortinet
CVE-2026-39812
Medium 4.3
In plain English
A medium-severity cross-site scripting in FortiSandbox from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official 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>
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiSandbox | 5.0.0 – through 5.0.44.4.0 – through 4.4.84.2.1 – through 4.2.8 |
| Fortinet | FortiSandbox PaaS | 5.0.0 – through 5.0.54.4.0 – through 4.4.84.2.1 – through 4.2.8 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C