Merry XmaSS

Welcome to the XSS advent calendar. Each day you'll find a new challenge where you have to exploit a cross-site scripting vulnerability and achieve script execution.

Your goal is to get an alert(1) popup!



Level 3
Level 15
Level 17
Level 12
Level 24
Level 1
Level 11
Level 6
Level 10
Level 23
Level 21
Level 8
Level 2
Level 18
Level 19
Level 9
Level 5
Level 13
Level 22
Level 16
Level 14
Level 4
Level 20
Level 7