Sites often use HTTP or URL parameters to redirect users to a specified URL without any user action. While this behavior can be useful, it can also cause open redirects, which happen when an attacker is able to manipulate the value of this parameter to redirect the user offsite. Let’s discuss this common bug, why it’s a problem, and how you can use it to escalate other vulnerabilities you find.
Mechanisms
Websites often need to automatically redirect their users. For example, this scenario commonly occurs when unauthenticated users try to access a page that requires logging in. The website will usually redirect those users ...
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