CVE-2026-7802: Frontend Admin WordPress Plugin Authorization Bypass and Admin Account Takeover

Technical summary

CVE-2026-7802 is an authorization bypass vulnerability in Frontend Admin (all versions ≤3.29.2) stemming from inadequate access control in user profile editing functions. The plugin fails to validate that the authenticated user has permission to modify the targeted user record. Attackers exploit this by injecting an arbitrary ?user_id= parameter to select victim accounts. The load_data() function contains conditional logic that mitigates the issue when the Edit-User form's 'Roles' configuration is non-empty; in that case, users outside the allowed role list trigger a fallback that sets user_id to 'none'. However, when 'Roles' is left empty, no such protection exists, leaving administrator accounts fully exposed to modification by any authenticated attacker. The vulnerability maps to CWE-862 (Missing Authorization).

Business impact

Successful exploitation results in complete administrator account takeover, granting an attacker full control of the WordPress site. Attackers can create backdoor accounts, modify site content, install malicious plugins, exfiltrate sensitive data, or pivot to connected systems. This is particularly dangerous for sites hosting customer data, e-commerce platforms, or content management systems where site integrity is critical. The low barrier to entry—only subscriber-level access required—means internal users, compromised low-privilege accounts, or users from poorly-managed subscription roles pose an immediate risk. Recovery requires full security audit and potential malware remediation.

Affected systems

Frontend Admin plugin for WordPress in versions 3.29.2 and earlier. Only installations with the Edit-User form's 'Roles' configuration setting left empty are vulnerable; sites that have defined an explicit roles list within the plugin configuration are not affected by this particular attack vector, though they should still patch. The vulnerability requires WordPress to be running and the plugin to be installed and activated.

Exploitability

Exploitability is high. The attack is network-accessible, requires only valid WordPress credentials at subscriber level or above, needs no user interaction, and carries no complex conditions beyond an improperly configured form setting. An attacker already inside the WordPress user database—whether through social engineering, leaked credentials, or a guest registration—can immediately attempt account takeover. No special tools or exploit code are necessary; the attack is feasible through the WordPress admin interface or direct HTTP requests. This is not an advanced attack.

Remediation

Update Frontend Admin to version 3.29.3 or later as soon as it becomes available. In the interim, if upgrading is not immediately possible, apply the plugin's 'Roles' configuration setting to the Edit-User form by explicitly defining which user roles are permitted to access that form; do not leave it empty. Additionally, audit all user accounts for unauthorized profile modifications (password changes, email updates) and review access logs for suspicious activity. Consider temporarily disabling the Frontend Admin plugin if you cannot patch immediately and cannot safely configure the Roles restriction.

Patch guidance

Verify the availability of a patched version (3.29.3 or later) from the plugin vendor's repository or your WordPress plugin update interface. Perform the update in a staging environment first to confirm compatibility with your site's configuration and other active plugins. After patching, clear any cached data and re-test the Edit-User form functionality to ensure legitimate workflows are not disrupted. If a patch has not yet been released, contact the plugin vendor (DynamiApps) for an estimated timeline and interim mitigation options. Document the patch version applied and the date for compliance and audit records.

Detection guidance

Monitor WordPress access logs and database activity for unusual administrative account modifications—particularly changes to user_pass, user_email, first_name, and last_name fields on accounts with administrator roles. Check for edit-user.php requests with suspicious or non-standard ?user_id= values. Review user audit logs within WordPress or via security plugins for password resets or email changes initiated by low-privilege accounts. If you operate a SIEM, create alerts for any user modification events where the authenticated user's role does not normally permit such changes. Examine WordPress database tables (wp_users) for unexpected modifications to high-privilege accounts around the time of suspected intrusion.

Why prioritize this

This vulnerability warrants immediate prioritization due to the combination of high CVSS score (8.8), low attack complexity, low privilege requirements, and high business impact. Any authenticated user can become a site administrator, making it a gateway to full compromise. The fact that many sites may not have configured the 'Roles' setting means a large install base is potentially at risk. Unlike many authorization bypasses that affect narrow user roles or require unusual configurations, this one thrives on a default-empty configuration state that many site administrators may not have addressed.

Risk score, explained

The CVSS v3.1 score of 8.8 (HIGH) reflects: network accessibility (AV:N), low attack complexity (AC:L), low privilege requirements (PR:L), no user interaction (UI:N), unchanged scope (S:U), and high impact across confidentiality, integrity, and availability (C:H/I:H/A:H). The score correctly captures the severity because the attacker gains administrative privilege and can execute arbitrary actions. The score would be critical (9.0+) if the vulnerability were exploitable without authentication, but the subscriber-level access requirement provides a minimal hurdle that still represents significant risk in most WordPress deployments.

Frequently asked questions