xiaoyunjie openvpn-cms-flask up to 1.2.7 User Creation Endpoint /app/api/v1/openvpn.py create_user Username command injection

Summaryinfo

A vulnerability, which was 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. Performing a manipulation of the argument Username results in command injection. This vulnerability is identified as CVE-2025-6775. The attack can be initiated remotely. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

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 with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-6775. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Upgrading to version 1.2.8 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch e23559b98c8ea2957f09978c29f4e512ba789eb6 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19425). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: openvpn-cms-flask 1.2.8
Patch: e23559b98c8ea2957f09978c29f4e512ba789eb6

Timelineinfo

06/27/2025 Advisory disclosed
06/27/2025 +0 days VulDB entry created
01/30/2026 +217 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 24
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2025-6775 (🔒)
GCVE (CVE): GCVE-0-2025-6775
GCVE (VulDB): GCVE-100-314091
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/27/2025 13:08
Updated: 01/30/2026 03:05
Changes: 06/27/2025 13:08 (65), 06/28/2025 04:22 (1), 06/28/2025 09:30 (30), 01/30/2026 03:05 (12)
Complete: 🔍
Submitter: Tritium
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #602373: xiaoyunjie openvpn-cms-flask 1.2.7 Command Injection (by Tritium)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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