This provides a workable communications channel from the victim back to the
attacker server. This works well, but the actual implementation in XSS-Proxy
must deal with limitations that some browsers (specifically IE) have on URL
sizes, and often the content will be chunked up and relayed across multiple
JavaScript code requests with reassembly logic on the attack server side.
The combination of these three features allow an attacker to feed the victim new
JavaScript for execution, gives access to other content on same site with the ...
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