CVE-2026-4812: Advanced Custom Fields (ACF®) <= 6.7.0 - Unauthenticated Missing Authorization to Arbitrary Post/Page Disclosure via AJAX Field Query Parameters
wpengine · Advanced Custom Fields (ACF®)
Affected: wpengine Advanced Custom Fields (ACF®) · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Percentile not published
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- wpengine · Advanced Custom Fields (ACF®)up to and including 6.7.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- wpengine
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-4812 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-862cwe.mitre.org
- wordfence.com/threat-intel/vulnerabilities/id/51e3a976-a1a3-411awordfence.com
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/plugins.trac.wordpress.org
5 more references are in the CVE record.