Tabnabbing
Introduction
When you open a link in a new tab ( target="_blank" ), the page that opens in a new tab can access the initial tab and change it's location using the window.opener property.
How to find
How to Exploit
Attacker posts a link to a website under his control that contains the following JS code:
He tricks the victim into visiting the link, which is opened in the browser in a new tab.
At the same time the JS code is executed and the background tab is redirected to the website evil.com, which is most likely a phishing website.
References
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