CVE-2023-6239 Incorrect calculation of effective permissions
Incorrect permission calculation in M-Files Server allows unauthorized access to objects under specific metadata configurations.
- 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-2023-6239?
CVE-2023-6239 is a medium-severity missing authorization vulnerability in M-Files Server, published on 28 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Under rare conditions, the effective permissions of an object might be incorrectly calculated if the object has a specific configuration of metadata-driven permissions in M-Files Server versions 23.9, 23.10, and 23.11 before 23.11.13168.7, potentially enabling unauthorized access to the object.
Weakness: CWE-281
Which versions are affected by CVE-2023-6239?
It affects 1 product.
Products include M-Files M-Files Server.
How do I fix CVE-2023-6239?
No fix has been published for CVE-2023-6239 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-2023-6239 being exploited?
There is no known exploitation of CVE-2023-6239 in the wild and no public exploit code.
Other vulnerabilities in M-Files Server
- CVE-2024-10127 Support for authentication bypass condition in M-Files LDAP authentication
- CVE-2025-5964 Path traversal in M-Files API
- CVE-2024-6789 Path traversal in M-Files API
- CVE-2024-4056 Denial of service condition in M-Files Server
- CVE-2023-6912 Brute force vulnerability in M-Files user authentication
Sources
Also known as GHSA-xjc5-m98p-6f2c.