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CVE-2026-18432 is a critical privilege-escalation vulnerability in the Frontend Admin by DynamiApps plugin for WordPress affecting all versions up to and including 3.29.9. The flaw is caused by improper authorization logic in ActionUser::conditions_logic(), where the current_user_can('edit_user', $user_id) capability check is only performed when $user_id passes an is_numeric() test. By supplying a crafted non-numeric user identifier through the item_id parameter to the unauthenticated frontend form change AJAX flow, an attacker can cause the authorization check to be skipped. The plugin can then generate a server-signed _acf_objects payload containing the attacker-controlled non-numeric user ID, which WordPress later coerces to integer 1, enabling modification of the default administrator account. This can be used to change the administrator account password or email address and thereby obtain administrative control of the site.
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No public exploit code observed for this vulnerability.
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A critical unauthenticated privilege escalation vulnerability in the Frontend Admin by DynamiApps WordPress plugin that allows attackers to gain administrative access and take over the default administrator account.
An unauthenticated privilege escalation vulnerability in the Frontend Admin by DynamiApps WordPress plugin caused by improper authorization logic around a non-numeric user ID passed via the item_id parameter, allowing escalation to administrator and overwrite of the default admin account's password or email.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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