CVE-2021-4343 uListing <= 1.6.6 - Unauthenticated Arbitrary Account Creation

Critical 9.8 Published Updated

Unauthenticated attackers can create administrator accounts via an unprotected AJAX action in the uListing WordPress plugin.

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-2021-4343?

CVE-2021-4343 is a critical missing authorization vulnerability in stylemix Directory Listings WordPress plugin – uListing, published on 7 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Unauthenticated Account Creation plugin for WordPress is vulnerable to Unauthenticated Account Creation in versions up to, and including, 1.6.6. This is due to the stm_listing_register AJAX action function being accessible and taking roles unprotected. This makes it possible for unauthenticated attackers to create accounts, even those with administrator privileges.

Weakness: CWE-862

Which versions are affected by CVE-2021-4343?

It affects 1 product.

Products include Stylemixthemes Ulisting.

How do I fix CVE-2021-4343?

No fix has been published for CVE-2021-4343 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-4343 being exploited?

There is no known exploitation of CVE-2021-4343 in the wild and no public exploit code.

Sources

Also known as GHSA-h5x9-8r4g-vvqc.

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