CVE-2021-4341: Stylemixthemes Ulisting

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

The uListing plugin for WordPress is vulnerable to authorization bypass via Ajax due to missing capability checks, missing input validation, and a missing security nonce in the stm_update_email_data AJAX action in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to change any WordPress option in the database.

Affected products

• Stylemixthemes Ulisting: up to and including 1.6.6

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