xss - will it work?

Question

JavaScript

I check the site automatically - it allegedly gives out the passage of xss:

Какой-нибудь рандомный текст"onmouseover=O8rL(9163)"

Yes, it is clear that onmouseover=O8rL(9163) is passing, but if there is no space there, it will not work?

Answer 1

Well, this is how it goes...

<div style="height:100px;border:1px solid black"onmouseover="alert()"/>