Never trust the mime - simple example by http://php.webtutor.pl/en/2011/05/13/php-code-injection-a-simple-virus-written-in-php-and-carried-in-a-jpeg-image/
Never trust the mime - simple example by http://php.webtutor.pl/en/2011/05/13/php-code-injection-a-simple-virus-written-in-php-and-carried-in-a-jpeg-image/