Advanced Custom Fields (ACF®) <= 6.8.1 - Unauthenticated Arbitrary Post Modification via Front-End Form '_post_title' and '_post_content' Parameters
| CVE | CVE-2026-8382 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | May 30, 2026 |
| Last Updated | May 31, 2026 |
| Researcher |
Sarawut Poolkhet (MisterHelloz)
|
Description
The Advanced Custom Fields (ACF®) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the post_title and post_content of any post bound to a publicly accessible acf_form() instance by injecting values into the _post_title and _post_content parameters of a form submission request.
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Vulnerability Details for Advanced Custom Fields (ACF®)
| Software Type | Plugin |
|---|---|
| Software Slug | advanced-custom-fields (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 6.8.2, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Advanced Custom Fields (ACF®)
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