This interactive lesson explains cross-site scripting (xss) attacks, in which attackers inject malicious scripts into legitimate websites viewed by other users through their browsers. When the page loads in the victim’s browser, the malicious script executes, enabling the attacker to steal information from, delete information from, or otherwise compromise the victim's computer. This lesson concludes with three methods of cross-site scripting prevention.

This interactive lesson was made possible by funding from National Science Foundation Grant # DUE 1601612 at Brookdale Community College in Lincroft, New Jersey – PI Mike Qaissaunee, with contributions from Dr. John Sands & Susan Sands of Moraine Valley Community College and Jaime Mahoney of Bunker Hill Community College.

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