What is CVE-2023-2027?

CVE-2023-2027 is a critical-severity vulnerability in Zanematthew Zm Ajax Login & Register, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2023-04-15.

How severe is CVE-2023-2027?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-2027 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Zanematthew Zm Ajax Login & Register

CVE-2023-2027

The ZM Ajax Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.0.2. This is due to insufficient verification on the user being supplied during a Facebook login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the username.

EPSS: 0.010 (58.9th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Broken Link)

Frequently asked questions

What is CVE-2023-2027?: CVE-2023-2027 is a critical-severity vulnerability in Zanematthew Zm Ajax Login & Register, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2023-04-15.
How severe is CVE-2023-2027?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-2027 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.