Update the WordPress WordPress Countdown Widget plugin to the latest available version (at least 184.108.40.206).
Rasi discovered and reported this Cross Site Request Forgery (CSRF) vulnerability in WordPress WordPress Countdown Widget Plugin. This could allow a malicious actor to force higher privileged users to execute unwanted actions under their current authentication. For example a password change which will then allow the malicious actor to login into the admin account. This vulnerability has been fixed in version 220.127.116.11.