CVE-2025-6775

Openvpn Cms Flask vulnerability

CVSS

6.3

EPSS

3.5%

EPSS pct

88th

Exploited

No known

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.

Affected vendor

Xiaoyunjie

Affected product

Openvpn Cms Flask

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness type (CWE)

CWE-74 — Injection
CWE-77 — Command Injection

Published

2025-06-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2025-6775

Confirm whether Xiaoyunjie Openvpn Cms Flask is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-6775.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-6775

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