CVE-2026-6226 Frontend Admin by DynamiApps <= 3.29.2 - Unauthenticated Privilege Escalation via Form Configuration Injection
Unauthenticated attackers can create administrator accounts by injecting custom form configurations with spoofed role fields in the Frontend Admin plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6226?
CVE-2026-6226 is a high-severity vulnerability in shabti Frontend Admin by DynamiApps, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-269
Which versions are affected by CVE-2026-6226?
How do I fix CVE-2026-6226?
No fix has been published for CVE-2026-6226 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6226 being exploited?
There is no known exploitation of CVE-2026-6226 in the wild and no public exploit code.
Sources
Also known as GHSA-mfvv-f9h5-2mqr.