CVE-2023-3999: Plugin Waiting

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The Waiting: One-click countdowns plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on its AJAX calls in versions up to, and including, 0.6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to create and delete countdowns as well as manipulate other plugin settings.

Affected products

• Plugin Waiting: up to and including 0.6.2

Published 2023-08-31. Last modified 2026-06-17.