CVE-2026-4812 — Missing Authorization in Advanced Custom Fields

CWE-862 — Missing Authorization2 documents2 sources
Severity
5.3MEDIUMNVD
EPSS
0.0%
top 88.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Wpengine Advanced Custom Fields
Timeline
PublishedApr 15

Description

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 …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages1 packages

🔴Vulnerability Details

1
CVEList
Advanced Custom Fields (ACF®) <= 6.7.0 - Unauthenticated Missing Authorization to Arbitrary Post/Page Disclosure via AJAX Field Query Parameters↗2026-04-15
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CVE-2026-4812 — Missing Authorization | cvebase