CVE-2025-14444: RegistrationMagic Payment Bypass Flaw

CVE-2025-14444 Overview

The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress contains a payment bypass vulnerability due to insufficient verification of data authenticity in the process_paypal_sdk_payment function. This flaw allows unauthenticated attackers to bypass paid registration requirements by manipulating payment status data, enabling them to activate accounts without completing legitimate PayPal transactions.

Critical Impact

Attackers can bypass payment requirements and gain unauthorized access to paid registration features without completing actual PayPal payments, potentially causing financial losses and unauthorized access to premium content or services.

Affected Products

• RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress versions up to and including 6.0.6.9

Discovery Timeline

• February 18, 2026 - CVE-2025-14444 published to NVD
• February 18, 2026 - Last updated in NVD database

Technical Details for CVE-2025-14444

Vulnerability Analysis

This vulnerability is classified as CWE-345 (Insufficient Verification of Data Authenticity). The core issue lies in the plugin's flawed approach to payment verification within the process_paypal_sdk_payment function. Rather than implementing proper server-side validation with PayPal's APIs to confirm transaction completion, the plugin accepts client-supplied values as authoritative indicators of payment status.

The vulnerable code path exists in class_rm_paypal_service.php where the plugin processes PayPal SDK payment responses. When a user submits registration with payment, the plugin relies on data that can be manipulated by the client before it reaches the server. This architectural flaw means an attacker can modify the payment response parameters to indicate a successful transaction even when no actual payment occurred.

Root Cause

The root cause is the plugin's trust in client-supplied payment verification data without performing server-side validation against PayPal's transaction APIs. The process_paypal_sdk_payment function fails to implement the necessary server-to-server verification that would confirm a payment was actually processed by PayPal before activating user accounts.

Attack Vector

The vulnerability is exploitable over the network without authentication. An attacker can intercept or craft payment response data during the registration process and modify the payment status indicators. By manipulating these client-side values to reflect a completed payment, the attacker can successfully register and activate an account that would normally require payment. This attack does not require any special privileges and can be performed by any unauthenticated user attempting to register on an affected WordPress site.

The attack flow involves:

1. Initiating a paid registration form submission
2. Intercepting the PayPal SDK payment response
3. Modifying the payment status fields to indicate success
4. Submitting the manipulated response to complete registration without actual payment

Detection Methods for CVE-2025-14444

Indicators of Compromise

• User accounts with paid registration status but no corresponding PayPal transaction records
• Registration submissions where payment confirmation data does not correlate with actual PayPal API transaction logs
• Unusual patterns of successful paid registrations without corresponding revenue in PayPal merchant accounts
• Mismatch between plugin payment records and PayPal transaction history

Detection Strategies

• Audit registered user accounts against PayPal transaction history to identify discrepancies
• Monitor web server logs for registration form submissions with suspicious or malformed PayPal response data
• Implement logging to track payment verification requests and compare against actual PayPal IPN (Instant Payment Notification) records
• Review WordPress database for user registrations that bypass expected payment workflows

Monitoring Recommendations

• Enable verbose logging for the RegistrationMagic plugin's payment processing functions
• Set up alerts for new user registrations to paid-tier services for manual payment verification
• Monitor PayPal merchant dashboard for transaction volume anomalies compared to registered user growth
• Implement periodic reconciliation between plugin payment records and PayPal account statements

How to Mitigate CVE-2025-14444

Immediate Actions Required

• Update the RegistrationMagic plugin to a version newer than 6.0.6.9 immediately
• Audit existing user accounts registered through paid forms to verify legitimate payment completion
• Review PayPal transaction history and compare against plugin registration records
• Temporarily disable paid registration forms if unable to update immediately

Patch Information

The vulnerability has been addressed in versions after 6.0.6.9. The fix can be reviewed in the WordPress Plugin Changeset Log. Additional technical details are available in the Wordfence Vulnerability Report.

Workarounds

• Disable PayPal payment integration within RegistrationMagic until the plugin can be updated
• Implement manual payment verification by cross-referencing new registrations with PayPal transaction records
• Consider using WordPress maintenance mode for paid registration pages until the update is applied
• Enable additional payment confirmation steps outside the plugin workflow as a temporary measure

# WordPress CLI command to update RegistrationMagic plugin
wp plugin update custom-registration-form-builder-with-submission-manager

# Verify plugin version after update
wp plugin get custom-registration-form-builder-with-submission-manager --field=version