TI-2025-06155 Aliases CVE-2025-6776 GHSA-27wr-2vmx-7hq4

xiaoyunjie openvpn-cms-flask File Upload controller.py upload path traversal

HIGH 70CWE-22Published 2025-06-27 · Updated 2025-06-27

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability classified as critical was found in xiaoyunjie openvpn-cms-flask up to 1.2.7. This vulnerability affects the function Upload of the file app/plugins/oss/app/controller.py of the component File Upload. The manipulation of the argument image leads to path traversal. The attack can be initiated 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 name of the patch is e23559b98c8ea2957f09978c29f4e512ba789eb6. It is recommended to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00731 54th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed openvpn-cms-flask (xiaoyunjie): 1.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
xiaoyunjie	openvpn-cms-flask	1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5; 1.2.6; 1.2.7	1.2.8	Patch available	CNA

openvpn-cms-flask Vendorxiaoyunjie Affected 1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5; 1.2.6; 1.2.7 Fixed in 1.2.8 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:xiaoyunjie:openvpn-cms-flask::::::::	before 1.2.8	Vulnerable	xiaoyunjie

cpe:2.3:a:xiaoyunjie:openvpn-cms-flask:*:*:*:*:*:*:*:* Versions before 1.2.8 Vulnerable ·xiaoyunjie

Remediation

Fix · CNA openvpn-cms-flask (xiaoyunjie) Fixed in 1.2.8

Timeline

2026-10-02 Threatist record created from CVE-2025-6776
2026-10-03 Alias added: GHSA-27wr-2vmx-7hq4

References

Exploit 1

https://github.com/xiaoyunjie/openvpn-cms-flask/issues/23

Patch 2

TI-2025-06154 xiaoyunjie openvpn-cms-flask User Creation Endpoint openvpn.py create_user command injection CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences