CVE-2025-65328

Name: CVE-2025-65328
Creator: NVD / NIST
Published: 2026-01-05T16:15:42.763+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-65328 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mega-Fence (webgate-lib.*) 25.1.914 and prior trusts the first value of the X-Forwarded-For (XFF) header as the client IP without validating a trusted proxy chain. An attacker can supply an arbitrary XFF value in a remote request to spoof the client IP, which is then propagated to security-relevant state (e.g., WG_CLIENT_IP cookie). EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

Mega-Fence (webgate-lib.*) 25.1.914 and prior trusts the first value of the X-Forwarded-For (XFF) header as the client IP without validating a trusted proxy chain. An attacker can supply an arbitrary XFF value in a remote request to spoof the client IP, which is then propagated to security-relevant state (e.g., WG_CLIENT_IP cookie). Deployments that rely on this value for IP allowlists may be bypassed.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.23%

13.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-807

Affected Software

Vendor	Product	Versions
Mega-Fence Project	Mega-Fence	<= 25.1.914

References

https://drive.proton.me/urls/MY05PVBFXG#xDd2Xqy98WM9Broken Link
https://raw.githubusercontent.com/p1aintext/CVE/main/CVE-2025-65328.mdExploit, Third Party Advisory

Timeline

Published: Jan 5, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-65328?

How severe is CVE-2025-65328?

CVE-2025-65328 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-65328?

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-2025-65328?

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

Scan your code now

Source: NVD / NIST