Fortinet: Improper access control and session management in the web management interface
Description
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiSandbox GUI may allow a remote unauthenticated attacker to bypass authentication via crafted HTTP requests. Revised on 2026-10-13 00:00:00
What to do
Install the fixed versions listed in the official advisory. If you cannot update right away, apply the workarounds or mitigations it describes and limit access to the affected service.
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Details
- Vendor
- Fortinet
- Product
- FortiSandbox
- Affected versions
- FortiSandbox 5.0: from 5.0.0 to 5.0.6 — fixed in 5.0.7
FortiSandbox 4.4: from 4.4.0 to 4.4.9 — fixed in 4.4.10
FortiSandbox PaaS 5.0: from 5.0.0 to 5.0.6 — fixed in 5.0.7
FortiSandbox PaaS 4.4: all versions 4.4 (from the advisory and NVD; check the exact builds in the official advisory) - CVSS score
- 9.6
- Actively exploited
- Not known at this time
- Source
- Fortinet PSIRT – original advisory
- Published
- October 13, 2026
The description and the recommended action are quoted from the public advisory (the action is our generic advice); severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.