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Security issue in using PHP unlink() function

Suppose i provided a sub directory on my webserver to one of my new team mate so that he can access it via FTP. Although he just got access to that particular directory but he can delete every file on my server using the same script. unlink('/var/www/site.com/*'); Is there any way to overcome this security threat????

1 Answer

Sean T. Unwin
Sean T. Unwin
28,690 Points

There is this Stackoverflow discussion which may be useful. The key points, from my understanding in reading, is to be sure to authenticate the user and also to ensure the absolute path is being used, as opposed to relative.

Interesting, yet potentially scary topic.