XSS Vulnerability Identified in Twiki with Invicti


Advisory by Netsparker (now Invicti)
Name: XSS vulnerability in TWiki
Software: TWiki 5.0.1 and possibly below.
Vendor Homepage: http://twiki.org/
Vulnerability Type: Cross-Site Scripting
Severity: High
Researcher: Mesut Timur
Advisory Reference: NS-11-005
CVE: CVE-2011-1838


TWiki® is a flexible, powerful, and easy-to-use enterprise wiki, enterprise collaboration platform, and web application platform. It is a Structured Wiki, typically used to run a project development space, a document management system, a knowledge base, or any other groupware tool, on an intranet, extranet, or the Internet.


TWiki is affected by XSS vulnerabilities in version 5.0.1.
Example PoC url is as follows:


To learn more about Cross-Site Scripting vulnerabilities, see Cross-site scripting (XSS)


Upgrade to the latest TWiki version (5.0.2).


It has been discovered on testing of Invicti Web Application Security Scanner.


  1. Vendor URL: http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2011-1838
  2. MSL Advisory Link: /XSS-vulnerability-in-Twiki/
  3. Invicti Advisories: /web-applications-advisories/

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