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Date: Mon, 27 May 2013 19:31:41 -0400
From: Jeffrey Walton <noloader@...il.com>
To: Robert Kugler <robert.kugler10@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: PayPal.com XSS Vulnerability

Hi Robert,

> Unfortunately PayPal disqualified me from receiving any bounty payment
> because of being 17 years old...
Interesting. The Bug Bounty page
(https://www.paypal.com/us/webapps/mpp/security/reporting-security-issues)
does not state there's an age restriction or minimum.

It appears PayPal is sending the message that its best to sell the bug
privately, rather than participate in responsible disclosure (despite
what their Bug Bounty page states).

Has anyone written about the issue? For example, an established
researcher? I'd like to see homage paid on PayPal's wikipedia page
(wikipedia has some rules about citing sources, so the person writing
would have to meet criteria).

Sorry to hear about the crappy treatment.

Jeff

On Fri, May 24, 2013 at 12:38 PM, Robert Kugler
<robert.kugler10@...il.com> wrote:
> Hello all!
>
> I'm Robert Kugler a 17 years old German student who's interested in securing
> computer systems.
>
> I would like to warn you that PayPal.com is vulnerable to a Cross-Site
> Scripting vulnerability!
> PayPal Inc. is running a bug bounty program for professional security
> researchers.
>
> https://www.paypal.com/us/webapps/mpp/security/reporting-security-issues
>
> XSS vulnerabilities are in scope. So I tried to take part and sent my find
> to PayPal Site Security.
>
> The vulnerability is located in the search function and can be triggered
> with the following javascript code:
>
> ';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))//";
> alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//--
>></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>
>
> https://www.paypal.com/de/cgi-bin/searchscr?cmd=_sitewide-search
>
> Screenshot: http://picturepush.com/public/13144090
>
> Unfortunately PayPal disqualified me from receiving any bounty payment
> because of being 17 years old...
>
> PayPal Site Security:
>
> "To be eligible for the Bug Bounty Program, you must not:
> ... Be less than 18 years of age.If PayPal discovers that a researcher does
> not meet any of the criteria above, PayPal will remove that researcher from
> the Bug Bounty Program and disqualify them from receiving any bounty
> payments."
>
> I don’t want to allege PayPal a kind of bug bounty cost saving, but it’s not
> the best idea when you're interested in motivated security researchers...
>
> Best regards,
>
> Robert Kugler

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