What’s Vulnerable › Vulnerabilities

CVE-2025-6776: xiaoyunjie openvpn-cms-flask File Upload controller.py upload path traversal

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-27 · updated 2026-06-17
• Weakness: CWE-22

Description

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.

Affected products

• xiaoyunjie openvpn-cms-flask: before 1.2.8 — fixed in 1.2.8

How to fix

Upgrade to a fixed version: xiaoyunjie openvpn-cms-flask 1.2.8. Check the vendor advisory for mitigations.

References

• https://github.com/xiaoyunjie/openvpn-cms-flask/commit/e23559b98c8ea2957f09978c29f4e512ba789eb6
• https://github.com/xiaoyunjie/openvpn-cms-flask/issues/23
• https://github.com/xiaoyunjie/openvpn-cms-flask/releases/tag/v1.2.8
• https://vuldb.com/?ctiid.314092
• https://vuldb.com/?id.314092
• https://vuldb.com/?submit.602374

Get alerted when CVE-2025-6776 or the next vulnerability affects your stack