Magento Product Attributes Cross Site Scripting

`DefenseCode Security Advisory  
Magento Stored Cross-Site Scripting a Product Attributes  
  
  
Advisory ID: DC-2018-03-004  
Advisory Title: Magento Stored Cross-Site Scripting a Product Attributes  
Advisory URL: http://www.defensecode.com/advisories.php  
Software: Magento  
Version: Magento 2.0 prior to 2.0.18, Magento 2.1 prior to  
2.1.12, Magento 2.2 prior to 2.2.3  
Vendor Status: Vendor contacted, vulnerability fixed  
Release Date: 06/03/2018  
Risk: MEDIUM  
  
  
  
1. General Overview  
===================  
During the security audit of Magento Open Source 2 a stored cross-site  
scripting vulnerability was discovered that could lead to administrator  
account takeover by a lower privileged administrator, putting the  
website customers and their payment information at risk.  
  
  
2. Software Overview  
====================  
Magento is an ecommerce platform built on open source technology  
which provides online merchants with a flexible shopping cart system,  
as well as control over the look, content and functionality of their  
online store. Magento offers powerful marketing, search engine  
optimization, and catalog-management tools. It is a leading  
enterprise-class eCommerce platform, empowering over 200,000  
online retailers.  
  
Homepage:  
http://www.magento.com  
  
  
3. Vulnerability Description  
============================  
During the security analysis of Magento Open Source 2 it was  
discovered that there is a stored cross-site scripting vulnerability  
present when an attribute value is set to a malicious JavaScript  
payload and added to a product. The payload will execute whenever a  
product is opened for editing, allowing a lower privileged admin  
with access to products and attributes to attack a higher privileged  
admin.  
  
  
4. Solution  
===========  
Vendor fixed the reported security issues and released a new version.  
All users are strongly advised to update to the latest available  
version.  
  
  
5. Credits  
==========  
Discovered by Bosko Stankovic ([email protected]).  
  
  
6. Disclosure Timeline  
======================  
22/11/2017 Vendor contacted through Bugcrowd platform  
27/11/2017 Vendor responded  
28/02/2018 Vulnerability fixed  
06/03/2018 Advisory released  
  
  
  
7. About DefenseCode  
====================  
DefenseCode L.L.C. delivers products and services designed to analyze  
and test web, desktop and mobile applications for security  
vulnerabilities.  
  
DefenseCode ThunderScan is a SAST (Static Application Security  
Testing, WhiteBox Testing) solution for performing extensive security  
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DefenseCode WebScanner is a DAST (Dynamic Application Security  
Testing, BlackBox Testing) solution for comprehensive security audits  
of active web applications. WebScanner will test a website's security  
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Subscribe for free software trial on our website  
http://www.defensecode.com/ .  
  
E-mail: defensecode[at]defensecode.com  
  
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`