PSIRTMultiple Stored XSS
Summary
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox and FortiSandbox Cloud may allow a privileged attacker to perform a stored XSS attack via crafted HTTP requests.
| Version | Affected | Solution |
|---|---|---|
| FortiSandbox 5.0 | 5.0.0 through 5.0.5 | Upgrade to 5.0.6 or above |
| FortiSandbox 4.4 | 4.4.0 through 4.4.8 | Upgrade to 4.4.9 or above |
| FortiSandbox 4.2 | 4.2 all versions | Migrate to a fixed release |
| FortiSandbox PaaS 5.0 | 5.0.0 through 5.0.5 | Upgrade to 5.0.6 or above |
| FortiSandbox PaaS 4.4 | 4.4.0 through 4.4.8 | Upgrade to 4.4.9 or above |
| FortiSandbox PaaS 4.2 | 4.2 all versions | Migrate to a fixed release |
Acknowledgement
Internally discovered and reported by Adamya Varma from Fortinet InfoSec team.Timeline
2026-04-14: Initial publication