CVE Catalog

CVE-2026-8382

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.40%

33th percentile - higher than 33% of all known CVEs

Summary

A vulnerability in the Advanced Custom Fields (ACF) plugin for WordPress (up to version 6.8.1) allows authorization bypass. Unauthenticated attackers can 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.

Risk Assessment

An attacker can modify post content on the site, potentially leading to defacement, injection of malicious content, or data theft.

Recommendation

Update the Advanced Custom Fields plugin to version 6.8.2 or later.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS