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Tiki-Wiki Auth Bypass (CVE-2020-15906)

cve-2020 | Level: Easy  | Total Lab Runs: 0 | Premium Lab

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What is Tiki Wiki CMS?

Tiki Wiki CMS Groupware is a free and open-source wiki-based content management system and Online office suite containing a number of collaboration features allowing it to operate as a Geospatial Content Management System.


In 2020, a high-risk vulnerability was found in Tiki-Wiki CMS. The Tiki-Wiki before 21.2 is vulnerable to authentication bypass vulnerability by setting a blank password of the admin user after the 50 invalid login attempts.

The CVE assigned to this vulnerability is CVE-2020-15906. The severity base score of this vulnerability is 9.8, which is considered critical. 

Read More:

In this lab environment, the user is going to get access to a Kali GUI instance. A Tiki-Wiki CMS is vulnerable to authentication bypass vulnerability, identified by CVE-2020-15906, and runs on the target server. It can be accessed using the tools installed on Kali at http://demo.ine.local

Your task is to fingerprint the Tiki CMS using the tools available on the Kali machine. Then, exploit it using the appropriate method.

The setup is based on: vulhub

Objective: Exploit the Tiki CMS using the burp and other tools to access the admin control panel.


  • This lab is dedicated to you! No other users are on this network :) 

  • Once you start the lab, you will have access to a root terminal of a Kali instance

  • The target application should be accessible at http://demo.ine.local

The following activities are strictly prohibited on this website unless otherwise explicitly stated as allowed in the mission statement:

  • Using automated scanners
  • Using brute force attacks
  • Denial of Service attacks
  • Attacking other student machines in challenges where you might achieve a shell on the vulnerable system
  • Attacking the lab infrastructure

Users violating the above will be either temporarily or permanently banned from the website. 

If you are unsure about an activity, then please contact support to confirm that it is allowed on our website.

Technical Support for this Lab:

There is a reason we provide unlimited lab time: you can take as much time as you need to solve a lab. However, we realize that sometimes hints might be necessary to keep you motivated!

We currently provide technical support limited to:

  • Giving hints for a lab exercise
  • In rare circumstances, if you have totally given up (NO!!!) then tell you how to solve it. This will be limited to sharing the solution video or lab report
  • A lab exercise fails to load or has errors in it

If you need technical support, please email  clearly mention the name and link of the lab exercise and other essential details. The more descriptive you are, the faster we can help you. We will get back to you within 24 hours or less. 

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