Countdown & Clock <= 2.8.9.1 is vulnerable to Unauthenticated Limited Local File Inclusion vulnerability

The Countdown, Coming Soon, Maintenance – Countdown & Clock plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 2.8.9.1 via the createCdObj function. This makes it possible for unauthenticated attackers to include and execute files with the specific filenames on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in some cases.