CVE-2026-4812

Advanced Custom Fields (ACF®) <= 6.7.0 - Unauthenticated Missing Authorization to Arbitrary Post/Page Disclosure via AJAX Field Query Parameters

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.

Affected

wpengine · Advanced Custom Fields (ACF®)

CVSS v3.1 WORDFENCE

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.86% chance of exploitation in the next 30 days, 58th percentile

Published

2026-04-15

Proof-of-concept exploits (1)

• D3CRYPTORDE/GuentherJB0★ · 2026-04-22

References

• CVE Record
• NVD entry

Related

• CVE-2026-20700