Frontend Admin by DynamiApps <= 3.29.2 — Unauthenticated Privilege Escalation via Form Configuration Injection

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ACF Frontend Admin by DynamiApps.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 3.29.3, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch ACF Frontend Admin by DynamiApps to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to daroo.

The Frontend Admin by DynamiApps plugin for WordPress is vulnerable to unauthenticated privilege escalation in versions up to and including 3.29.2. This is due to insecure form submission handling that accepts arbitrary form definitions from user input instead of securely loading them from the backend. When $_POST['_acf_form'] is an array (rather than a form ID), the validate_form() function bypasses database lookup and directly processes the attacker-controlled structure. The create_record() function preserves attacker-supplied record data if present, and the user action's run() function falls back to attacker-controlled field definitions from $form['fields'] when legitimate fields cannot be found. The role field's pre_update_value() validation reads $field['role_options'] from this attacker-controlled definition, allowing an attacker to specify ['administrator'] as an allowed role and bypass the security check. This makes it possible for unauthenticated attackers to create administrator accounts by injecting a custom form configuration with a spoofed role field.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. May 27, 2026

   CVE published

   Severity high, CVSS 8.8

2. Nov 13, 2026

   Record last updated