CVE-2026-15257

An unauthenticated attacker can perform PHP Object Injection in RegistrationMagic versions up to 6.0.9.7.

Versions of RegistrationMagic up to 6.0.8.6 have a vulnerability in unauthenticated authentication, which may allow attackers to take over user accounts.

The RegistrationMagic WordPress plugin before version 6.0.9.4 does not sanitize and escape a parameter before using it in a SQL statement, which could allow high privilege users such as admin to perform SQL injection attacks.

The RegistrationMagic WordPress plugin before 6.0.9.5 does not compare the verified PayPal capture's amount, currency, payee, or prior use against the registration it is finalising: its server-side check only confirms the capture status is COMPLETED. An unauthenticated attacker can therefore finalise an expensive paid registration with any genuinely-completed low-value capture, and replay a single capture across unlimited registrations because captures are not de-duplicated.

The RegistrationMagic WordPress plugin before 6.0.9.4 does not properly validate that a one-time password cookie belongs to the requested identity, allowing unauthenticated attackers to read other users' form submissions, including personal information.

The RegistrationMagic plugin for WordPress up to version 6.0.8.6 contains an authentication bypass vulnerability due to insufficient data authenticity verification in the PayPal IPN handler. The handler is accessible to unauthenticated users and updates the database before IPN validation, allowing an attacker to forge an IPN request, overwrite the user ID in a payment log, and then obtain authentication cookies for any user, including administrators.