WPEngine Advanced Custom Fields PRO Missing Authorization Vulnerability Allowing Broken Access Control

Vulnerability

A missing authorization vulnerability has been identified in the WPEngine Advanced Custom Fields PRO plugin, affecting versions prior to 6.3.2. This vulnerability allows exploitation of incorrectly configured access control security levels, potentially leading to unauthorized users performing actions reserved for higher privileges.

Impact

Exploitation of this vulnerability could allow an unprivileged user to execute actions that require higher privileges, due to the missing authorization checks in the plugin.

Remediation

Users of the Advanced Custom Fields PRO WordPress plugin should update to version 6.3.2 or later. Patchstack users can enable auto-update for vulnerable plugins.

Added: May 15, 2026, 9:32 AM
Updated: May 15, 2026, 9:32 AM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.6
exploitability
5.2
remediation
0.0
relevance
0.0
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.