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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 7.00% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- metagauss/registrationmagic
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/changeset/2635173/custom-registration-form-builder-with-submission-manager/trunk/services/class_rm_user_services.phpPatch, Third Party Advisory
- https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-user-registration-plugin/Exploit, Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-4073Third Party Advisory
- https://plugins.trac.wordpress.org/changeset/2635173/custom-registration-form-builder-with-submission-manager/trunk/services/class_rm_user_services.phpPatch, Third Party Advisory
- https://www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-user-registration-plugin/Exploit, Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-4073Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.