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FortiSandbox CVE-2025-52436

Our experts keep you up-to-date on critical cyber threats (CVEs)

FortiSandbox has a security issue in older versions. Update to 5.0.2+ or 4.4.8+. For PaaS, the fix is there in 4.4.8 and 5.0.5.

FortiSandbox CVE-2025-52436

A vulnerability has been identified in FortiSandbox where input is insufficiently neutralised during the generation of web pages (cross-site scripting - CWE-79). This allows an undeclared attacker to execute commands via specially formatted requests.

Take action

Upgrade to a version that includes the fix:

Version Affected Solution
FortiSandbox 5.0 5.0.0 to 5.0.1 Upgrade to 5.0.2 or higher
FortiSandbox 4.4 4.4.0 to 4.4.7 Upgrade to 4.4.8 or higher
FortiSandbox 4.2 all versions Migrate to a fixed release
FortiSandbox 4.0 all versions Migrate to a fixed release

For FortiSandbox PaaS, the fix is available in versions 4.4.8 and 5.0.5.

What does VanRoey do?

Managed Services customers can rest assured: your environment is proactively monitored. The necessary updates have been or will be provided by us.

If you don't have a managed-services contract, and need questions or help to fix this issue for you. Then feel free to contact us at support@vanroey.be or tel: 014 470 605 or make here is a ticket to.

Can't create tickets? Ask here to get an account. If our Engineer needs to remotely control your PC, he or she will ask you to run this software .

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