Persistent XSS bug discovered on eBayWritten by DPWednesday, 6 October 2010
Security researcher " Side3ffects" has contacted us regarding a critical persistent XSS that he discovered on eBay:
"Once you login to your account on eBay, edit the option "About me".
Now go to :
Demo URL (My profile):
It is also vulnerable to redirection with the following XSS attack vector:
'"--><script>alert(/Xss2ro07 aKa Side3ffects)</script>
<script>document.onload=location.href='http://www.xssed.com</script>"
One of the possible exploitation scenarios is malicious people stealing cleartext credentials from registered users by injecting an iframe tag that retrieves another rogue eBay login page from a remote server.
Screenshot:
Other reported XSS bugs affecting eBay domains include (all still pending a fix):
Secure eBay's Law Enforcement eRequest System, discovered by " Nemessis":
eBay Italy Ads, another one discovered by " d3v1l":
eBay has been XSSed many times in the past.
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