Greetings All, I am trying to reproduce the issue, but php is reporting some error: like fail to open lang/../../../../../../../../../../etc/passwd%00; path=//lang.php. vulnerable code is: include("lang/".$_SESSION['language']."/lang.php"); exploit is: ../../../../../../../../../../etc/passwd%00; path=/ as the value of vulnerable paramter. exploit link is:http://milw0rm.com/exploits/6641 After observing this error i thought there must some issue with the application, so created a vulnerable php program whose details are: <?php include("lang/".$_GET[filename]."/lang.php"); ?> Then i send a GET a request: GET /vulnerable php?filename=lang/../../../../../../../../../../etc/passwd%00; path=/ still, i am observing same error. This is happening because inside include function, there is an additon of /lang.php after the vulnerable parameter value in both case. I am not able to understand how the author manage to view the contents of /etc/passwd by this method. please help me out. Thanks in advance.