Information
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Advisory by Netsparker
Name: XSS Vulnerability in OpenCart
Affected Software : OpenCart
Affected Versions: v2.1.0.1 and possibly below
Vendor Homepage : http://www.opencart.com
Vulnerability Type : Cross-site Scripting
Severity : Important
Status : Fixed
CVE-ID : CVE-2015-4671
Netsparker Advisory Reference : NS-15-023

Description
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By exploiting a Cross-site scripting vulnerability the attacker can hijack
a logged in user’s session. This means that the malicious hacker can change
the logged in user’s password and invalidate the session of the victim
while the hacker maintains access. As seen from the XSS example in this
article, if a web application is vulnerable to cross-site scripting and the
administrator’s session is hijacked, the malicious hacker exploiting the
vulnerability will have full admin privileges on that web application.

Technical Details
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Proof of Concept URLs for XSS in OpenCart v2.1.0.1:

/opencart/index.php?route=account/address/add
(zone_id - POST)

For more information on cross-site scripting vulnerabilities read the
following article on Cross-site Scripting (XSS) -
https://www.netsparker.com/web-vulnerability-scanner/vulnerability-security-checks-index/crosssite-scripting-xss/

Advisory Timeline
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07/12/2015 - First Contact
16/12/2015 - Vendor Fixed
18/12/2015 - Advisory Released

Solution
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https://github.com/opencart/opencart/commit/303fa88fe664ded4bf8753b997abd916f0a3c03f


Credits & Authors
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These issues have been discovered by Ziyahan Albeniz while testing
Netsparker Web Application Security Scanner -
https://www.netsparker.com/web-vulnerability-scanner/

About Netsparker
--------------------
Netsparker web application security scanners find and report security flaws
and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in
all websites and web applications, regardless of the platform and
technology they are built on. Netsparker scanning engine’s unique detection
and exploitation techniques allow it to be dead accurate in reporting
vulnerabilities. The Netsparker web application security scanner is
available in two editions; Netsparker Desktop and Netsparker Cloud. Visit
our website https://www.netsparker.com for more information.

Onur Yılmaz - National General Manager

Netsparker Web Application Security Scanner <https://www.netsparker.com>
T: +90 (0)554 873 0482