Challenge list
Web SecurityLevel 1★☆☆☆☆Web-04. The robots.txt Trap
Websites often serve a robots.txt file for crawlers. In this challenge, check whether a file that robots.txt tells…
Web SecurityLevel 1★☆☆☆☆Web-05. Directory Listing Trap
When an Nginx server has directory index listing (autoindex) enabled, anyone can browse the full file listing of a…
Web SecurityLevel 1★☆☆☆☆Web-06. Forging HTTP Headers
This application grants access based on the value of a specific HTTP header. Even values the browser never sends by…
Web SecurityLevel 1★☆☆☆☆Web-07. Tampering with URL Parameters
This web application checks the value of the GET parameter key on the server side. The required parameter name and…
Web SecurityLevel 1★☆☆☆☆Web-08. Tampering with POST Data
The login form contains a hidden input field that is invisible in the rendered page. Inspect it with developer tools…
Web SecurityLevel 1★☆☆☆☆Web-09. The Weak Basic Auth Trap
A protected area is guarded by HTTP Basic Authentication, but the developer accidentally left the credentials in an…
Web SecurityLevel 1★☆☆☆☆Web-10. Peeking Behind a Redirect
Accessing a certain page immediately redirects you elsewhere. Browsers automatically follow redirects, so think about…
Web SecurityLevel 1★☆☆☆☆XSS Basics - Guestbook
This web application has a basic XSS vulnerability. Find where input is reflected in the guestbook. The flag is at an…