CVE-2021-4343: Stylemixthemes Ulisting

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• Stylemixthemes Ulisting: up to and including 1.6.6

Published 2023-06-07. Last modified 2026-06-17.