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CVE-2025-65328

nvd nist
Published: Jan 5, 2026Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Exploitability: 3.9 / Impact: 2.5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (1)

Mega Fence Project
1 product
Mega Fence
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mega Fence
Up to 25.1.914

Related CWEs

CWE-807
Reliance on Untrusted Inputs in a Security Decision
The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.

References (2)

Source: cve@mitre.org
Broken Link
Source: cve@mitre.org
ExploitThird Party Advisory

Timeline

No history available yet.