CVE-2026-103681 Overview
CVE-2026-103681 is a missing authorization vulnerability in the Frontend Dashboard WordPress plugin before version 3.0.0. The plugin fails to perform a capability check in one of its AJAX actions. Authenticated users with low-privilege roles, such as subscribers, can abuse this flaw to delete the plugin's configured profile and post form fields. The weakness is categorized as improper access control [CWE-284] and affects the integrity of plugin configuration data.
Critical Impact
Any authenticated subscriber-level account can destroy Frontend Dashboard profile and post form field configurations, disrupting site functionality that depends on the plugin.
Affected Products
- Frontend Dashboard WordPress plugin versions prior to 3.0.0
- WordPress sites with subscriber registration enabled
- Any WordPress deployment relying on Frontend Dashboard for user-facing forms
Discovery Timeline
- 2026-10-07 - CVE-2026-103681 published to NVD
- 2026-10-07 - Last updated in NVD database
Technical Details for CVE-2026-103681
Vulnerability Analysis
The Frontend Dashboard plugin exposes administrative functionality through WordPress AJAX endpoints. One of these endpoints handles deletion of configured form fields used in the profile and post submission interfaces. The handler registers under both wp_ajax_ and does not validate whether the requesting user holds the capability required to modify plugin configuration.
As a result, any authenticated user, including the lowest-privilege subscriber role, can invoke the action and remove fields the site administrator configured. The flaw does not permit disclosure of sensitive data and does not directly affect availability of the WordPress core, but it corrupts plugin state and breaks dependent front-end workflows.
Root Cause
The root cause is a missing current_user_can() capability check inside the AJAX handler responsible for deleting profile and post form fields. The handler may verify a nonce or authentication, but it does not confirm that the caller has administrative privileges before mutating configuration data. This is a textbook broken access control defect against [CWE-284].
Attack Vector
An attacker needs a valid low-privilege account on the target WordPress site. They authenticate, obtain a valid AJAX nonce from an accessible page, and then issue an admin-ajax.php request invoking the vulnerable action with parameters identifying the field to delete. No user interaction from an administrator is required. See the WPScan Vulnerability Report for the full technical write-up.
Detection Methods for CVE-2026-103681
Indicators of Compromise
- Unexpected POST requests to /wp-admin/admin-ajax.php from subscriber-level accounts targeting Frontend Dashboard actions.
- Missing or altered profile and post form fields in the Frontend Dashboard configuration without an administrator audit trail.
- Front-end submission forms rendering with reduced or absent input fields after user activity spikes.
Detection Strategies
- Review WordPress access logs for admin-ajax.php requests containing Frontend Dashboard action names originating from non-administrator sessions.
- Correlate plugin configuration changes with the authenticated user ID and role at the time of the request.
- Audit the plugin options and metadata tables for unexpected removals of field definitions.
Monitoring Recommendations
- Enable WordPress audit logging to capture AJAX action invocations with user context.
- Alert on configuration mutations performed by accounts below the editor role.
- Monitor subscriber account creation volume for unusual spikes that may precede exploitation attempts.
How to Mitigate CVE-2026-103681
Immediate Actions Required
- Upgrade the Frontend Dashboard plugin to version 3.0.0 or later on all WordPress installations.
- Audit existing subscriber accounts and remove any created without a legitimate business purpose.
- Back up current Frontend Dashboard field configurations so they can be restored if deletion has already occurred.
Patch Information
The maintainers resolved the issue in Frontend Dashboard 3.0.0 by adding the missing capability check to the affected AJAX action. Site operators should apply the update through the WordPress plugin manager or WP-CLI. Refer to the WPScan Vulnerability Report for advisory details.
Workarounds
- Temporarily disable the Frontend Dashboard plugin until the patched version is applied.
- Restrict new user registration or set the default role to a custom role that cannot authenticate against AJAX endpoints.
- Place the WordPress admin surface behind a web application firewall rule that blocks the vulnerable AJAX action for non-privileged users.
# Update Frontend Dashboard to the patched release using WP-CLI
wp plugin update frontend-dashboard --version=3.0.0
wp plugin list --name=frontend-dashboard --fields=name,status,version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.