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

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

(zone_id - POST)

For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS).

Advisory Timeline
07/12/2015 - First Contact
16/12/2015 - Vendor Fixed
05/01/2016 - Advisory Released


Credits & Authors
These issues have been discovered by Ziyahan Albeniz while testing Netsparker Web Application Security 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 Enterprise. Visit our website for more information.