CVE-2026-81346 Overview
CVE-2026-81346 affects the Frontend Admin by DynamiApps WordPress plugin in versions prior to 3.29.11. The plugin fails to perform a capability check on one of its AJAX actions. Any authenticated user, including a low-privileged subscriber, can invoke the vulnerable action to delete arbitrary membership plans. The flaw is classified as Missing Authorization [CWE-862] and requires only low-privilege authenticated access over the network.
Critical Impact
Authenticated subscribers can delete arbitrary membership plans on affected WordPress sites, disrupting site monetization and access control.
Affected Products
- Frontend Admin by DynamiApps WordPress plugin versions before 3.29.11
- WordPress sites with the plugin installed and user registration enabled
- Membership-driven WordPress deployments relying on the plugin
Discovery Timeline
- 2026-08-29 - CVE-2026-81346 published to NVD
- 2026-08-31 - Last updated in NVD database
Technical Details for CVE-2026-81346
Vulnerability Analysis
The Frontend Admin by DynamiApps plugin registers AJAX actions accessible to authenticated WordPress users. One of these actions handles deletion of membership plans but omits a current_user_can() capability check. As a result, WordPress evaluates only the nonce and authentication state, not the actor's role or permissions. A subscriber-level account can therefore trigger administrative destructive operations. The issue falls under the Broken Access Control category and specifically Missing Authorization [CWE-862].
Root Cause
The root cause is the absence of a role or capability verification step inside the AJAX handler responsible for membership plan deletion. WordPress plugins must call current_user_can() with an appropriate capability such as manage_options before performing privileged actions. The affected handler proceeds directly to the destructive database operation once the request authenticates.
Attack Vector
Exploitation requires network access to the WordPress site and any authenticated account. On sites with open registration, an attacker registers a subscriber account and sends a crafted admin-ajax.php POST request to the vulnerable action, supplying the target membership plan identifier. The server processes the deletion without validating the caller's role. Refer to the WPScan Vulnerability Advisory for full technical details.
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Indicators of Compromise
- Unexpected deletion or disappearance of membership plans in the plugin's admin interface
- POST requests to /wp-admin/admin-ajax.php from subscriber-role accounts containing the plugin's plan-deletion action name
- New subscriber account registrations followed shortly by AJAX activity to admin endpoints
Detection Strategies
- Review WordPress access logs for admin-ajax.php requests originating from low-privileged users targeting DynamiApps Frontend Admin actions
- Audit membership plan records against backups to identify unauthorized deletions
- Correlate user session data with administrative state changes in the plugin's data tables
Monitoring Recommendations
- Enable WordPress audit logging to capture plan create, update, and delete events with acting user identity
- Alert on AJAX action invocations by subscriber-role users where the action modifies administrative objects
- Monitor for spikes in new user registration followed by AJAX traffic to plugin endpoints
How to Mitigate CVE-2026-81346
Immediate Actions Required
- Update the Frontend Admin by DynamiApps plugin to version 3.29.11 or later
- Audit existing membership plans and restore any missing entries from backup
- Review WordPress user accounts and remove suspicious subscriber registrations
Patch Information
The vendor addressed the issue in Frontend Admin by DynamiApps version 3.29.11. The fix introduces the missing capability check on the affected AJAX action. Consult the WPScan Vulnerability Advisory for advisory details and version metadata.
Workarounds
- Disable the Frontend Admin by DynamiApps plugin until the patched version is applied
- Disable open user registration by unchecking Settings > General > Membership in the WordPress dashboard
- Restrict access to /wp-admin/admin-ajax.php at the web application firewall for low-privileged users where feasible
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
