In this chapter we were introduced to GreaseMonkey and learned how to use it to analyze
and exploit Web applications. We also described how to create scripts and touched on some
of the security issues GreaseMonkey users need to understand before installing random
scripts. In this section we are going to learn how to abuse GreaseMonkey's powerful fea-
tures and attack unaware users with backdoored user scripts.
As we noted many times throughout this book, cross-site scripting is an attack vector
that takes ...
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