CVE-2023-3406 Path traversal issue in M-Files Classic Web

High 7.7 Published 25 Aug 2023 Updated 23 Feb 2026

Authenticated users can exploit a path traversal flaw in M-Files Classic Web to read restricted files on the web server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-3406?

CVE-2023-3406 is a high-severity path traversal vulnerability in M-Files Web, published on 25 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Path Traversal issue in M-Files Classic Web versions below 23.6.12695.3 and LTS Service Release Versions before 23.2 LTS SR3 allows authenticated user to read some restricted files on the web server

Weakness: CWE-22

Which versions are affected by CVE-2023-3406?

It affects 1 product.

Products include M-Files Classic Web.

How do I fix CVE-2023-3406?

No fix has been published for CVE-2023-3406 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-3406 being exploited?

There is no known exploitation of CVE-2023-3406 in the wild and no public exploit code.

Sources

Also known as GHSA-g25q-jw4h-pppq.