CVE-2025-6775 xiaoyunjie openvpn-cms-flask User Creation Endpoint openvpn.py create_user command injection

Medium 5.3 Published 27 Jun 2025 Updated 27 Jun 2025

Remote attackers can execute arbitrary commands via the username field in the user creation endpoint of openvpn-cms-flask.

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-2025-6775?

CVE-2025-6775 is a medium-severity command injection vulnerability in xiaoyunjie openvpn-cms-flask, published on 27 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability classified as critical has been found in xiaoyunjie openvpn-cms-flask up to 1.2.7. This affects the function create_user of the file /app/api/v1/openvpn.py of the component User Creation Endpoint. The manipulation of the argument Username leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.2.8 is able to address this issue. The patch is named e23559b98c8ea2957f09978c29f4e512ba789eb6. It is recommended to upgrade the affected component.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2025-6775?

It affects 1 product.

Products include Xiaoyunjie Openvpn-Cms-Flask.

How do I fix CVE-2025-6775?

No fix has been published for CVE-2025-6775 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2025-6775 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6775 exists.

CVE-2025-6776 xiaoyunjie openvpn-cms-flask File Upload controller.py upload path traversal Medium 6.9

Sources

Also known as GHSA-5xw6-hgf5-pvxx.