CVE-2021-4073: RegistrationMagic <= 5.0.1.7 Authentication Bypass
First published: Tue Dec 14 2021(Updated: )
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, 5.0.1.7.
Credit: security@wordfence.com security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| RegistrationMagic User Registration Plugin | <=5.0.1.7 |
Remedy
Update to version 5.0.1.8, or newer.
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Reference Links
- https://plugins.trac.wordpress.org/changeset/2635173/custom-registration-form-builder-with-submission-manager/trunk/services/class_rm_user_services.php
- https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-user-registration-plugin/
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-4073
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2021-4073.
What is the severity level of CVE-2021-4073?
The severity level of CVE-2021-4073 is critical (8.1).
Which software is affected by CVE-2021-4073?
The RegistrationMagic WordPress plugin, specifically the version up to 5.0.1.7, is affected by CVE-2021-4073.
What is the impact of CVE-2021-4073?
CVE-2021-4073 allows unauthenticated users to log in as any site user, including administrators, if they know a valid username on the site.
How can I fix CVE-2021-4073?
To fix CVE-2021-4073, update the RegistrationMagic WordPress plugin to a version that includes the patched vulnerability.
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- version/registrationmagic user registration plugin/5.0.1.7