how to change data from college site?

okay so i am in college with CGPA of 7.5/10

they have a website which has a fetch button after clicking to it it displays correct marks of all semester

how can i change my marks?

when i inspected the fetch button there was a requested URL

but when i enter the URL it says an error occurred, this clearly means i am not authorized to enter that

what should i do to change my marks?

i was thinking SQL injection which is very common but i didn't find any signs of database or you know...something like that...it's just an URL which provides the fetch results

please help me, thank you.

submitted by /u/AryaR2003
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