6.5
/ 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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.
Basic Information
ID
CVE-2025-65328
Source
mitre
Published
Jan 5, 2026 at 00:00
Modified
Jan 5, 2026 at 21:08
Affected Product
Vendor
n/a
Product
n/a
Version
n/a
Affected Versions
n/a n/a n/a