CVE-2026-32385: RegistrationMagic Auth Bypass Vulnerability

CVE-2026-32385 Overview

A Missing Authorization vulnerability has been identified in the Metagauss RegistrationMagic WordPress plugin (custom-registration-form-builder-with-submission-manager). This vulnerability allows attackers to exploit incorrectly configured access control security levels, potentially leading to unauthorized actions within the WordPress installation. The vulnerability is classified under CWE-862 (Missing Authorization), indicating that the application fails to perform proper authorization checks before allowing certain operations.

Critical Impact

Authenticated attackers with low-level privileges can bypass authorization controls to modify data or cause service disruptions within WordPress sites running vulnerable versions of RegistrationMagic.

Affected Products

• RegistrationMagic WordPress Plugin versions from n/a through 6.0.7.6
• WordPress installations using the custom-registration-form-builder-with-submission-manager plugin
• Sites relying on RegistrationMagic for user registration and form management

Discovery Timeline

• 2026-03-13 - CVE-2026-32385 published to NVD
• 2026-03-16 - Last updated in NVD database

Technical Details for CVE-2026-32385

Vulnerability Analysis

This vulnerability stems from insufficient authorization checks within the RegistrationMagic plugin's functionality. The plugin fails to properly validate user permissions before executing certain operations, allowing authenticated users with minimal privileges to perform actions that should be restricted to administrators or higher-privileged roles.

The vulnerability requires network access and low-level authentication (such as a subscriber account on the WordPress site). While user interaction is not required, the attacker must first obtain valid credentials to exploit this flaw. Successful exploitation can result in unauthorized modifications to plugin settings or form submissions, as well as potential disruption of the registration system's availability.

Root Cause

The root cause is classified as CWE-862 (Missing Authorization). The RegistrationMagic plugin does not implement proper capability checks or nonce verification for certain AJAX handlers or administrative functions. This allows authenticated users to call functions that should be restricted to administrators, bypassing the intended access control model.

Attack Vector

The attack is conducted over the network and requires authenticated access to the WordPress site. An attacker with a low-privileged account (such as a subscriber) can send crafted requests to vulnerable plugin endpoints. Since no user interaction is required from the victim, the attack can be executed entirely through direct HTTP requests to the WordPress installation.

The vulnerability affects the integrity and availability of the system. Attackers may be able to modify form configurations, alter submission data, or disrupt the normal operation of the registration functionality. Confidentiality is not directly impacted according to the vulnerability assessment.

Detection Methods for CVE-2026-32385

Indicators of Compromise

• Unexpected changes to RegistrationMagic form configurations or settings
• Unusual API calls or AJAX requests originating from low-privileged user accounts
• Modification of form submissions or registration data by non-administrative users
• Error logs showing access attempts to restricted plugin functions

Detection Strategies

• Monitor WordPress audit logs for unauthorized access to RegistrationMagic administrative functions
• Implement web application firewall (WAF) rules to detect suspicious AJAX requests to plugin endpoints
• Review user activity logs for low-privileged accounts attempting administrative actions
• Deploy file integrity monitoring to detect unauthorized changes to plugin settings

Monitoring Recommendations

• Enable comprehensive WordPress activity logging with plugins like WP Activity Log
• Configure alerts for changes to plugin settings made by non-administrator users
• Monitor HTTP traffic patterns for unusual POST requests to admin-ajax.php with RegistrationMagic action parameters
• Regularly audit user roles and capabilities to ensure principle of least privilege

How to Mitigate CVE-2026-32385

Immediate Actions Required

• Update RegistrationMagic plugin to a version newer than 6.0.7.6 once a patch is available
• Review and restrict user roles on WordPress sites running affected versions
• Audit recent activity logs for signs of exploitation
• Consider temporarily disabling the plugin on critical sites until a patch is applied

Patch Information

No official patch information has been published at the time of this writing. Site administrators should monitor the Patchstack WordPress Vulnerability Report for updates on remediation. Affected versions include RegistrationMagic through version 6.0.7.6.

Workarounds

• Restrict user registration on WordPress sites to prevent attackers from obtaining low-privileged accounts
• Implement additional access control layers using security plugins with capability management features
• Configure a Web Application Firewall (WAF) to filter requests to the RegistrationMagic plugin endpoints
• Temporarily remove untrusted users from the WordPress installation until the vulnerability is patched

# Configuration example - Restrict access to plugin AJAX actions via .htaccess
# Add to WordPress .htaccess file to limit AJAX access

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{REQUEST_METHOD} POST
  RewriteCond %{QUERY_STRING} action=rm_ [NC]
  RewriteCond %{HTTP_COOKIE} !wordpress_logged_in.*admin [NC]
  RewriteRule ^wp-admin/admin-ajax\.php$ - [F,L]
</IfModule>