CVE-2020-15939 Missing authorization in Fortinet FortiSandbox

What is CVE-2020-15939?

CVE-2020-15939 is a medium-severity missing authorization vulnerability in Fortinet Fortisandbox, published on 6 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An improper access control vulnerability (CWE-284) in FortiSandbox versions 3.2.1 and below and 3.1.4 and below may allow an authenticated, unprivileged attacker to download the device configuration file via the recovery URL.

Which versions are affected by CVE-2020-15939?

It affects 1 product.

Products include Fortinet Fortisandbox.

How do I fix CVE-2020-15939?

No fix has been published for CVE-2020-15939 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-15939 being exploited?

There is no known exploitation of CVE-2020-15939 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortisandbox

• CVE-2026-25089 Fortinet FortiSandbox OS Command Injection Exploited Critical 9.1
• CVE-2026-39808 Fortinet FortiSandbox OS Command Injection Exploited Critical 9.1
• CVE-2026-26083 Missing authorization in FortiSandbox Critical 9.1
• CVE-2026-39813 Path traversal in FortiSandbox Critical 9.1
• CVE-2020-29011 SQL injection in Fortinet FortiSandbox High 8.8

All Fortinet Fortisandbox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-v8wg-346x-j7mw.