CVE-2026-24374: RegistrationMagic CSRF Vulnerability

CVE-2026-24374 Overview

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the Metagauss RegistrationMagic WordPress plugin, a popular custom registration form builder with submission management capabilities. This vulnerability allows attackers to craft malicious requests that, when executed by an authenticated user, can perform unauthorized actions on behalf of that user without their knowledge or consent.

Critical Impact

Attackers can exploit this CSRF vulnerability to manipulate registration forms, modify submission data, or perform administrative actions by tricking authenticated administrators into clicking malicious links or visiting compromised websites.

Affected Products

• Metagauss RegistrationMagic plugin versions through 6.0.6.9
• WordPress installations using vulnerable versions of the custom-registration-form-builder-with-submission-manager plugin
• All WordPress sites with RegistrationMagic plugin versions <= 6.0.6.9

Discovery Timeline

• 2026-01-22 - CVE CVE-2026-24374 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2026-24374

Vulnerability Analysis

This Cross-Site Request Forgery vulnerability exists due to missing or improper nonce validation in the RegistrationMagic plugin. WordPress plugins should implement nonce tokens to verify that form submissions and AJAX requests originate from legitimate users within the WordPress admin interface. When nonce verification is absent or improperly implemented, attackers can forge requests that appear to come from authenticated users.

The vulnerability is classified under CWE-352 (Cross-Site Request Forgery), which describes weaknesses where a web application does not sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. In the context of this WordPress plugin, this means that administrative actions related to registration form management may be performed without proper origin validation.

Root Cause

The root cause of this vulnerability stems from insufficient implementation of WordPress's built-in CSRF protection mechanisms. WordPress provides functions such as wp_nonce_field(), wp_verify_nonce(), and check_admin_referer() to protect against CSRF attacks. The affected versions of RegistrationMagic fail to properly implement these protections on one or more sensitive endpoints, allowing cross-origin requests to be processed as legitimate administrative actions.

Attack Vector

The attack vector for this CSRF vulnerability operates over the network and requires user interaction. An attacker must craft a malicious web page or email containing specially constructed requests targeting the vulnerable plugin endpoints. When an authenticated WordPress administrator visits the attacker's page or clicks a malicious link while logged into their WordPress site, the forged request executes with the administrator's privileges.

The attack typically involves embedding hidden forms or JavaScript that automatically submit requests to the victim's WordPress installation. Since browsers automatically include authentication cookies with cross-origin requests, the WordPress site processes these forged requests as if they came from the legitimate administrator.

Detection Methods for CVE-2026-24374

Indicators of Compromise

• Unexpected changes to registration form configurations without administrator action
• Unusual submission management activity or deleted form entries
• Web server logs showing POST requests to RegistrationMagic endpoints with external referrer headers
• Modified plugin settings or configurations that administrators did not authorize

Detection Strategies

• Monitor WordPress audit logs for administrative actions on RegistrationMagic plugin settings performed outside normal administrative sessions
• Implement Content Security Policy (CSP) headers to detect and block cross-origin form submissions
• Review web server access logs for suspicious referrer patterns targeting /wp-admin/ endpoints related to the registration plugin
• Deploy Web Application Firewall (WAF) rules to detect CSRF attack patterns

Monitoring Recommendations

• Enable WordPress activity logging plugins to track all administrative changes to form configurations
• Configure alerts for RegistrationMagic settings modifications occurring outside expected maintenance windows
• Monitor for unusual patterns in form submission data that may indicate exploitation attempts
• Regularly audit plugin configurations against known-good baselines

How to Mitigate CVE-2026-24374

Immediate Actions Required

• Update the RegistrationMagic plugin to a version newer than 6.0.6.9 that includes the CSRF fix
• Temporarily disable the plugin if an update is not immediately available and the functionality is not critical
• Advise WordPress administrators to log out of admin sessions when browsing external websites
• Implement additional CSRF protection at the web server or WAF level as defense-in-depth

Patch Information

Security updates addressing this vulnerability should be obtained directly from the official WordPress plugin repository or the vendor. Administrators should check for available updates through the WordPress dashboard under Plugins > Installed Plugins. For detailed vulnerability information and patch status, refer to the Patchstack Vulnerability Report.

Workarounds

• Restrict WordPress admin access to trusted IP addresses only using .htaccess rules or server configuration
• Implement a Web Application Firewall with CSRF protection rules enabled
• Use browser extensions or configurations that block cross-origin requests when accessing WordPress admin areas
• Ensure administrators use dedicated browser profiles for WordPress administration that are not used for general web browsing

# Apache .htaccess configuration to restrict wp-admin access by IP
<Files "wp-login.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from your.trusted.ip.address
</Files>

<Directory "/var/www/html/wp-admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from your.trusted.ip.address
</Directory>