CVEvulnerability

CVE-2025-65328

6.5 MEDIUM Published 2026-01-05 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-807

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 configurations

• mega-fence project mega-fence (<= 25.1.914)

Related

Weakness · CWE (1)

  • CWE-807 Reliance on Untrusted Inputs in a Security Decision weakness

References