CVE-2023-4153: Webmedia Ban Users

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

The BAN Users plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.5.3 due to a missing capability check on the 'w3dev_save_ban_user_settings_callback' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify the plugin settings to access the ban and unban functionality and set the role of the unbanned user.

Affected products

• Webmedia Ban Users: up to and including 1.5.3

Published 2023-09-13. Last modified 2026-06-17.