RCE in Xiaoyunjie Openvpn-Cms-Flask

CVE-2025-6775

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.

EPSS: 0.035 (88.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-6775?
CVE-2025-6775 is a medium-severity vulnerability in Xiaoyunjie Openvpn-Cms-Flask, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2025-06-27.
How severe is CVE-2025-6775?
Medium severity. CVSS v3 base score is 6.3 out of 10.