i am sorry nihil but i had to do it see it is my schools site and all i want to do is to inform them of a security bug they won't take me seriously if i don't have a proof.
I hope u understand anyways after reading these three replys i have decided to make my own reverse shell exploit for this( i am not good at that but atleast i will try to do so).
I never got an understanding of shell codes but i don't want to look stupid anymore.