CVE-2026-120534 Advanced Custom Fields: Extended PRO <= 0.9.2.6 - Unauthenticated Remote Code Execution via Dynamic Render Field Type
CriticalCVSS 9.8
EPSS 0.31%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ACF Extended Advanced Custom Fields: Extended PRO | <= 0.9.2.6 | No fix listed |
| wordpress acf-extended-pro(WordPress) | < 0.9.2.7 | 0.9.2.7 |
References
- www.wordfence.com
- www.acf-extended.com
- Wordfence Intelligence third-party-advisory
- www.cve.org