Command Injection Vulnerability in OpenVPN-CMS Flask by Xiaoyunjie
CVE-2025-6775

5.3MEDIUM

Key Information:

Vendor

Xiaoyunjie

Status
Openvpn-cms-flask
Vendor
CVE Published:
27 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6775?

A command injection vulnerability has been identified in the User Creation Endpoint of the OpenVPN-CMS Flask application, specifically within the create_user function of the openvpn.py file. Attackers can remotely exploit this vulnerability by manipulating the Username argument, potentially leading to unauthorized command execution on the server. Users are strongly advised to update to version 1.2.8, which contains the necessary patch (commit e23559b98c8ea2957f09978c29f4e512ba789eb6) to mitigate this risk. Public disclosure of this exploit increases the urgency for all users to secure their installations.

Affected Version(s)

openvpn-cms-flask 1.2.0

openvpn-cms-flask 1.2.1

openvpn-cms-flask 1.2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-6775 - Proof of Concept

References

https://vuldb.com/?id.314091
vdb-entrytechnical-description
https://vuldb.com/?ctiid.314091
signaturepermissions-required
https://vuldb.com/?submit.602373
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tritium (VulDB User)
.
CVE-2025-6775 : Command Injection Vulnerability in OpenVPN-CMS Flask by Xiaoyunjie