Vision of danger: The Firefox Greasemonkey

Via bugtraq mailing list:

Greasemonkey is a free and very popular nowadays extension for Firefox browser. This tool lets users to add DHTML scripts to any web site and change its original behaviour. Its a nice feature, nice for good and bad guys...This short paper was written to show what can happen if user will run a "bad" script, the idea is to show the danger itself.

Click for the paper.