Interesting HTTP
Last updated
Last updated
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Referrer is the header used by browsers to indicate which was the previous page visited.
If at some point inside a web page any sensitive information is located on a GET request parameters, if the page contains links to external sources or an attacker is able to make/suggest (social engineering) the user visit a URL controlled by the attacker. It could be able to exfiltrate the sensitive information inside the latest GET request.
You can make the browser follow a Referrer-policy that could avoid the sensitive information to be sent to other web applications:
You can override this rule using an HTML meta tag (the attacker needs to exploit and HTML injection):
Never put any sensitive data inside GET parameters or paths in the URL.
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