PayPal (Notify) - Filter Bypass & Persistent Vulnerability

Document Title:
===============
PayPal (Notify) - Filter Bypass & Persistent Vulnerability


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=1425

Video: https://www.youtube.com/watch?v=J2upim5MrV0

Advisory: http://www.vulnerability-lab.com/get_content.php?id=1640



Release Date:
=============
2018-07-09


Vulnerability Laboratory ID (VL-ID):
====================================
1639


Common Vulnerability Scoring System:
====================================
3.8


Vulnerability Disclosure Timeline:
==================================
2018-07-10: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Low


Technical Details & Description:
================================
The video explains a persistent input validation and mail encoding web vulnerability in the official paypal inc notify online service web-application.
The vulnerability compromises the cancel email that is get send by the panel to the saved credentials inbox. Remote attackers with low privilege web-application 
user accounts are able to inject malicious payloads on the application-side of the service and emails.


Credits & Authors:
==================
Vulnerability Lab  (Core Research Team) - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab


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=========================
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