<label for="firstName">Name:</label>
<input
id="firstName"
type="text"
value="<script>alert('XSS Input Success')</script><span>Loading XSS</span>"
style="margin-top: 1rem;"
/>
<br />
<button
class="btn btn-primary input-test"
data-loading-text="<span>Loading XSS</span>"
type="button"
style="margin-top: 1rem;"
>
Click Me
</button>
$(function () {
$('.input-test').click(function () {
var inputValue = $('#firstName').val();
$(this).data('loadingText', inputValue);
$(this).button('loading', inputValue);
});
});