DynamiApps Frontend Admin Plugin up to 3.29.9 on WordPress Authorization Logic change_form conditions_logic item_id improper authorization

Summaryinfo

A vulnerability was found in DynamiApps Frontend Admin Plugin up to 3.29.9 and classified as critical. Affected by this vulnerability is the function ActionUser::conditions_logic of the file /wp_ajax_nopriv_frontend_admin/forms/change_form of the component Authorization Logic. Such manipulation of the argument item_id leads to improper authorization. This vulnerability is traded as CVE-2026-18432. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in DynamiApps Frontend Admin Plugin up to 3.29.9. It has been rated as critical. Affected by this issue is the function ActionUser::conditions_logic of the file /wp_ajax_nopriv_frontend_admin/forms/change_form of the component Authorization Logic. The manipulation of the argument item_id with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Frontend Admin by DynamiApps plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.29.9. The vulnerability exists because `ActionUser::conditions_logic()` gates the `current_user_can('edit_user', $user_id)` authorization check behind an `is_numeric()` test, causing the check to be skipped entirely when `$user_id` is a non-numeric string — a condition that can be induced by passing a crafted value such as `1one` through the unvalidated `item_id` parameter of the unauthenticated `wp_ajax_nopriv_frontend_admin/forms/change_form` AJAX endpoint. This makes it possible for attackers to escalate privileges to administrator by obtaining a server-signed `_acf_objects` payload carrying the non-numeric user ID, which WordPress subsequently coerces to integer 1 (the default administrator), allowing the attacker to overwrite that account's password or email address. Exploitation by unauthenticated users requires a public-facing frontend user form to be configured; in all other cases a subscriber-level account is sufficient.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-18432 since 07/30/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/16/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• DynamiApps

Name

• Frontend Admin Plugin

Version

• 3.29.0
• 3.29.1
• 3.29.2
• 3.29.3
• 3.29.4
• 3.29.5
• 3.29.6
• 3.29.7
• 3.29.8
• 3.29.9

CPE 2.3info

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CPE 2.2info

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