What a funny Mission....
Took me really long to figure the Username out. But i found it. Is there any other Method instead of Try and Error to figure out the Password ? I got the pw, but i wonder if it is not possible to print out the Password -Table with CONCAT ?
I don't wanna spoiler, but a hint for all who struggle with the 3. Part of the Mission:
Think about deleting stuff, there is already a possibility to do this at the page, play with it.Happy hacking !
Reneg4de