CVE-2025-6776

Name: CVE-2025-6776
Creator: NVD / NIST
Published: 2025-06-27T20:15:35.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2025-6776 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.62%

45.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Xiaoyunjie	Openvpn-Cms-Flask	< 1.2.8

References

https://github.com/xiaoyunjie/openvpn-cms-flask/commit/e23559b98c8ea2957f09978c29f4e512ba789eb6Patch
https://github.com/xiaoyunjie/openvpn-cms-flask/issues/23Exploit, Issue Tracking, Vendor Advisory
https://github.com/xiaoyunjie/openvpn-cms-flask/releases/tag/v1.2.8Release Notes
https://vuldb.com/?ctiid.314092Permissions Required, VDB Entry
https://vuldb.com/?id.314092Third Party Advisory, VDB Entry
https://vuldb.com/?submit.602374Third Party Advisory, VDB Entry

Timeline

Published: Jun 27, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-6776?

How severe is CVE-2025-6776?

CVE-2025-6776 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6776?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-6776?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST