keyword with every payloadx8 if no parameter from website reflects payloadlocation.search, location.hash etc.sources in browser and search using keywordurlflux
use it for url crwalling with katana
If XSS not foun
In case XSS is not found try to do HTMLi
What you described:
Change
id=1toid=)and if it gives a 500 error, there might be SQLi.
The correction: