What the vulnerability does
01Description
The Advanced Custom Fields (ACF) plugin for WordPress is vulnerable to Missing Authorization to Arbitrary Post/Page Disclosure in versions up to and including 6.7.0. This is due to AJAX field query endpoints accepting user-supplied filter parameters that override field-configured restrictions without proper authorization checks. This makes it possible for unauthenticated attackers with access to a frontend ACF form to enumerate and disclose information about draft/private posts, restricted post types, and other data that should be restricted by field configuration.
Explanation of Vulnerability in Simple Terms
02Summary
Advanced Custom Fields (ACF) versions 6.7.0 and earlier fail to properly check user permissions before allowing access to certain data. An attacker without authentication can read sensitive information stored in ACF fields. The vulnerability requires only network access and no user interaction. Update to a version newer than 6.7.0 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Read sensitive data stored in ACF custom fields without logging in.
Potential impact on your site
04Site Impact
Unauthorized users can access private or restricted custom field data on your site.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 15, 2026
CVE published
April 15, 2026
Record updated
