CVE Catalog

CVE-2026-120534

CriticalCVSS 9.8
Published: Updated: Translated: NVD NIST

Summary

The Advanced Custom Fields: Extended PRO plugin for WordPress is vulnerable to Limited Code Injection in all versions up to, and including, 0.9.2.6 via the render_field function. Insufficient validation of form configuration parameters allows unauthenticated attackers to call arbitrary WordPress functions with controlled arguments.

Risk Assessment

This could lead to unauthorized actions within the WordPress context, potentially including site takeover. However, it requires additional conditions (shortcode_preview enabled or OpenSSL functions missing).

Recommendation

Update the plugin to a version later than 0.9.2.6. Additionally, consider disabling the shortcode_preview setting and ensuring OpenSSL functions are available on the server.

Related vulnerabilities

Original NVD description (English source)

The Advanced Custom Fields: Extended PRO plugin for WordPress is vulnerable to Limited Code Injection in all versions up to, and including, 0.9.2.6 via the render_field function. This is due to insufficient validation of form configuration parameters before merging into field settings and passing to call_user_func_array in the render_field method. This makes it possible for unauthenticated attackers to call arbitrary WordPress functions with controlled arguments. Method 1 requires the administrator to enable the non-default 'shortcode_preview' setting for the target form, while Method 2 requires the server environment to lack OpenSSL functions, causing ACF Pro's acf_decrypt to fall back to unverified base64 decoding.

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