A Remote File Include vulnerability exists in clearBudget v0.9.8. An attacker can exploit this vulnerability to include a remote file containing malicious code and execute it on the vulnerable system. The vulnerability is due to the 'actionPath' parameter in the 'controller.class.php' script not properly sanitized before being used to include a file. An attacker can exploit this vulnerability by sending a maliciously crafted HTTP request containing a URL in the 'actionPath' parameter to include a remote file containing malicious code and execute it on the vulnerable system.