RegistrationMagic <= - Authentication Bypass

Improper Authentication
CVE CVE-2021-4073
CVSS 9.8 (Critical)
Publicly Published December 8, 2021
Last Updated January 22, 2024
Researchers Marco Wotschka - Wordfence
Chloe Chamberland - Wordfence
AyeCode Ltd


The RegistrationMagic WordPress plugin made it possible for unauthenticated users to log in as any site user, including administrators, if they knew a valid username on the site due to missing identity validation in the social login function social_login_using_email() of the plugin. This affects versions equal to, and less than,



Vulnerability Details for RegistrationMagic – User Registration Plugin with Custom Registration Forms

Software Type Plugin
Software Slug custom-registration-form-builder-with-submission-manager (view on
Patched? Yes
Remediation Update to version, or a newer patched version
Affected Version
  • <=
Patched Version

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