Project description:

first :I want to change my final school grades of two subjects
second: you can’t leave any traces of your operation
third :the instructions of the website maybe is Chinese, I am not sure if this is an obstacle for you ?I know little about the site’s invasion domain, I hope you can achieve it.
if you can do it, can you finish it in one day?
This is my school’s  educational administration management system.?
http://210.42.121.241/index.jsp