Auth bypass in Registrationmagic
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 functi…
Vulnerability class: Broken Authentication
EPSS: 0.630 (98.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Registrationmagic — versions 5.0.1.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/vulnerability-advisories/ (x_refsource_MISC)
- plugins.trac.wordpress.org/changeset/2635173/custom-registration-form-builder-w… (x_refsource_MISC)
- www.wordfence.com/blog/2021/12/authentication-bypass-vulnerability-patched-in-u… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-4073?
- CVE-2021-4073 is a critical-severity vulnerability in Registrationmagic, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-12-14.
- How severe is CVE-2021-4073?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-4073 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.