PayPal Send Money Cross-Site Scripting Vulnerability

[Nathan Power <np () securitypentest com>]

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1. Summary:


PayPal's send money feature is affected by an XSS (cross-site scripting)
vulnerability.


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2. Description:


When sending money via PayPal, the sender has an option to input a message
along with the money being sent.  A malicious attacker can inject XSS code
into this message box because it fails to validate input.  When the victim
goes to view the transaction page the injected code will execute.

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3. Impact:


Potentially allow an attacker access to a victim’s PayPal account.

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4. Affected Products:


www.paypal.com

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5. Solution:  None

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6. Time Table:


12/06/2010 Reported Vulnerability to the Vendor
12/07/2010 Vendor Acknowledge Vulnerability

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7. Credits:


Discovered by Nathan Power
www.securitypentest.com

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