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    CVE-2021-4073

    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.

    Published:Dec 14, 2021
    Last Modified:Feb 14, 2025
    EPS:Dec 14, 2021
    EPSS Score:0.02501
    CVSS Score:9.8

    Affected Products

    Vendor
    Metagauss
    Product
    Registrationmagic

    Exploits

    https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-user-registration-plugin/https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-user-registration-plugin/

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-82225 (CVSS 7.4) — Unauthenticated Broken Authentication in RegistrationMagic <= 6.0.9.8 versions.…
    CVE-2026-82221 (CVSS 7.1) — Unauthenticated Cross Site Scripting (XSS) in RegistrationMagic <= 6.0.9.8 versions.…
    CVE-2026-73341 (CVSS 9.8) — Unauthenticated PHP Object Injection in RegistrationMagic <= 6.0.9.7 versions.…
    CVE-2026-49764 (CVSS 9.8) — Unauthenticated Broken Authentication in RegistrationMagic <= 6.0.8.6 versions.…
    CVE-2026-32498 (CVSS 7.5) — Missing Authorization vulnerability in Metagauss RegistrationMagic custom-registration-form-builder-with-submi…
    CVE-2026-24373 (CVSS 8.1) — Incorrect Privilege Assignment vulnerability in Metagauss RegistrationMagic custom-registration-form-builder-w…
    CVE-2026-32385 (CVSS 5.4) — Missing Authorization vulnerability in Metagauss RegistrationMagic custom-registration-form-builder-with-submi…
    CVE-2025-15520 (CVSS 4.3) — The RegistrationMagic WordPress plugin before 6.0.7.2 checks nonces but not capabilities, allowing for the di…
    CVE-2026-1054 (CVSS 5.3) — The RegistrationMagic plugin for WordPress is vulnerable to Missing Authorization in versions up to, and inclu…
    CVE-2026-24374 (CVSS 5.4) — Cross-Site Request Forgery (CSRF) vulnerability in Metagauss RegistrationMagic custom-registration-form-builde…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High