CVE-2021-4073 - CVE House
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Status published Critical CVE-2021-4073

RegistrationMagic <= 5.0.1.7 Authentication Bypass

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Chloe Chamberland, Wordfence
  • Marco Wotschka, Wordfence
  • AyeCode Ltd

Affected Vendor

RegistrationMagic

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Affected Software

RegistrationMagic
Vulnerable Versions:
5.0.1.7

Timeline

Official Publish: December 14th, 2021
Last Modified: February 14th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)