Information
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Advisory by Netsparker.
Name: XSS Vulnerability in Sharetronix
Affected Software : Sharetronix
Affected Versions: 3.4 and possibly below
Vendor Homepage : http://sharetronix.com/
Vulnerability Type : Cross-site Scripting
Severity : Important
Netsparker Advisory Reference : NS-14-036

Description
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Social Software is only useful if it achieves wide adoption. Adoption only occurs if the software fits the use case and works within existing work processes. Sharetronix has nearly a decade of experience helping organizations large and small create Social Software solutions that fit their needs

Technical Details
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Proof of Concept URLs for XSS in Sharetronix:

http://example.com/share/signup - (POST, fields:email )
'"--></style></scRipt><scRipt>alert(0x00015E)</scRipt>

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

Advisory Timeline
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25/06/2014 - First contact
01/07/2014 - Second contact
03/12/2014 - Advisory released

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

About Netsparker
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Netsparker can find and report security issues and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allows it to be dead accurate in reporting hence it's the first and the only False Positive Free web application security scanner.