CVE-2026-4812 (GCVE-0-2026-4812)
Vulnerability from cvelistv5 – Published: 2026-04-15 01:25 – Updated: 2026-04-15 01:25
VLAI?
Title
Advanced Custom Fields (ACF®) <= 6.7.0 - Unauthenticated Missing Authorization to Arbitrary Post/Page Disclosure via AJAX Field Query Parameters
Summary
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.
Severity ?
5.3 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| wpengine | Advanced Custom Fields (ACF®) |
Affected:
0 , ≤ 6.7.0
(semver)
|
Credits
Fernando Mecozzi
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}
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"metrics": [
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"providerMetadata": {
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"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/includes/fields/class-acf-field-post_object.php#L155"
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{
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{
"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/includes/fields/class-acf-field-relationship.php#L187"
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{
"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6.7.0/includes/fields/class-acf-field-relationship.php#L187"
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{
"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/includes/fields/class-acf-field-page_link.php#L144"
},
{
"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6.7.0/includes/fields/class-acf-field-page_link.php#L144"
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{
"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/trunk/includes/fields/class-acf-field-user.php#L435"
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"url": "https://plugins.trac.wordpress.org/browser/advanced-custom-fields/tags/6.7.0/includes/fields/class-acf-field-user.php#L435"
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"timeline": [
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"time": "2026-04-14T12:58:08.000Z",
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},
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"datePublished": "2026-04-15T01:25:17.540Z",
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"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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