A website that serves a JSONP endpoint that accepts a custom alphanumeric callback of 1200 chars can be abused to serve an encoded swf payload that steals the contents of a same-domain URL. Flash < 220.127.116.11 is required. This module spins up a web server that, upon navigation from a user, attempts to abuse the specified JSONP endpoint URLs by stealing the response from GET requests to STEAL_URLS.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
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