CVE-2021-4073

RegistrationMagic <= 5.0.1.7 Authentication Bypass

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.

Affected

RegistrationMagic

CVSS v3.1 NVD

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 WORDFENCE

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

6.84% chance of exploitation in the next 30 days, 94th percentile

Nuclei

critical · CWE-287

Published

2021-12-14

Updated

2025-02-14

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-4073.yaml

Security advisories

• https://plugins.trac.wordpress.org/changeset/2635173/custom-registration-form-builder-wit…
• https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-use…
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-4073

References

• CVE Record
• NVD entry