Information
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Advisory by Netsparker
Name: DOM XSS Vulnerability in iCheck
Affected Software : iCheck
Affected Versions: v1.x and possibly below
Vendor Homepage : https://github.com/fronteed/iCheck  
Vulnerability Type : Cross-site Scripting
Severity : Important
Status : Not fixed
Netsparker Advisory Reference : NS-15-020

Technical Details
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Proof of Concept URL for XSS in iCheck:

/icheck-1.x/demo/#<img/src/onerror=alert(1)>

For more information on this vulnerability read the article What is DOM based Cross-site Scripting vulnerability.

Advisory Timeline
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04/09/2015 - First Contact
06/11/2015 - Second Contact
15/12/2015 - Advisory Released

Solution
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Developer did not follow up / no solution is available.

Credits & Authors
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These issues have been discovered by Onur Yilmaz while testing Netsparker Web Application Security Scanner.

About Netsparker
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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, hence it does not report any false positives. 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.