CVE-2023-2027 ZM Ajax Login & Register <= 2.0.2 - Authentication Bypass

Critical 9.8 Published Updated

Unauthenticated attackers can bypass authentication and log in as any existing user, including administrators, via the Facebook login feature.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-2027?

CVE-2023-2027 is a critical authentication bypass vulnerability in zanematthew ZM Ajax Login & Register, published on 15 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-287, CWE-288

Which versions are affected by CVE-2023-2027?

It affects 1 product.

Products include Zm Ajax Login \& Register Project Zm Ajax Login \& Register.

How do I fix CVE-2023-2027?

No fix has been published for CVE-2023-2027 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-2027 being exploited?

There is no known exploitation of CVE-2023-2027 in the wild and no public exploit code.

Sources

Also known as GHSA-x4hx-qqp4-qp78.

Is CVE-2023-2027 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free