Advanced Custom Fields: Extended: Code execution
Advanced Custom Fields: Extended is affected by code execution. The vulnerable path is reachable without authentication. Successful exploitation can run attacker-controlled code in the WordPress hosting account.
- Component
- Advanced Custom Fields: Extended
- Plugin slug
advanced-custom-fields-extended- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Dec 03, 2025
This CVE was published Dec 03, 2025 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Advanced Custom Fields: Extended to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Remote Code Execution in versions 0.9.0.5 through 0.9.1.1 via the prepare_form() function. This is due to the function accepting user input and then passing that through call_user_func_array(). This makes it possible for unauthenticated attackers to execute arbitrary code on the server, which can be leveraged to inject backdoors or create new administrative user accounts.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H