Exercises

Exercise Avg. Time Difficulty Solved by Tier
Unicode and Uppercase
This exercise covers how you can use unicode to gain access to an admin account.
< 1 Hr. medium 687 PRO
Code Review 06
This exercise is one of our challenges to help you learn how to review real source code
2-4 Hr. medium 393 PRO
Cross-Site Leak
This exercise covers how to use Cross-Site Leak to recover sensitive information
2-4 Hr. hard 591 PRO
From SQL injection to Shell III: PostgreSQL Edition SQL Injection
This exercise covers how to gain access to an administration interface using a SQL injection, and how to get command execution using Ghostscript
2-4 Hr. medium 257 PRO
OAuth2: Client CSRF II
This exercise covers the exploitation of a CSRF in an OAuth2 Client
2-4 Hr. medium 499 PRO
XSS Include XSS
This exercise covers how to use Cross-Site-Scripting Include to leak information
< 1 Hr. easy 1378 PRO
OAuth2: Client CSRF
This exercise covers the exploitation of a CSRF in an OAuth2 Client
< 1 Hr. medium 977 PRO
Code Review 05
This exercise is one of our challenges to help you learn how to review real source code
2-4 Hr. hard 440 PRO
Code Review 04
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. hard 558 PRO
JS Prototype Pollution
This exercise covers how to exploit Prototype Pollution against a JavaScript application
< 1 Hr. easy 965 PRO
OAuth2: Authorization Server CSRF
This exercise covers the exploitation of a CSRF in an OAuth2 Authorization Server
1-2 Hr. easy 1173 PRO
Code Review 03
This exercise is one of our challenges to help you learn how to review real source code
2-4 Hr. hard 480 PRO
SSRF in PDF generation
This exercise covers how you can read arbitrary files when an application generates pdfs from provided links
< 1 Hr. easy 925 PRO
OAuth2: Github HTTP HEAD
This exercise covers the exploitation of the HTTP HEAD issue impacting Github in 2019
< 1 Hr. hard 465 PRO
SVG XSS
This exercise covers how to use an SVG to trigger a Cross-Site-Scripting
< 1 Hr. medium 1896 PRO
Apache Pluto RCE
This exercise covers how to gain code execution on Apache Pluto 3.0.0 due to a flaw in the authorization logic
< 1 Hr. medium 561 PRO
JSON Cross-Site Request Forgery
This exercise details the exploitation of a Cross-Site Request Forgery when JSON is used
< 1 Hr. medium 1512 PRO
Cross-Site Request Forgery
This exercise details the exploitation of a Cross-Site Request Forgery to gain access to sensitive data
< 1 Hr. medium 1562 PRO
Code Review 02
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. medium 652 PRO
postMessage() IV
This exercise covers how insecure calls to the JavaScript function postMessage() can be used to leak sensitive information when a listener does not filter the Origin and X-Frame-Options is used
< 1 Hr. medium 991 PRO
Code Review 01
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. medium 931 PRO
Spring Actuators
This exercise covers how you can gain code execution using Spring Actuators when Spring Cloud is used.
1-2 Hr. medium 300 PRO
postMessage() III
This exercise covers how insecure calls to the JavaScript function postMessage() can be used to trigger a Cross-Site Scripting
< 1 Hr. medium 1008 PRO
postMessage() II
This exercise covers how insecure calls to the JavaScript function postMessage() can be used to leak sensitive information when a listener does not filter the Origin
< 1 Hr. medium 1116 PRO
PHP phar://
This exercise covers how the PHP phar:// handler can be used to gain code execution using PHP unserialize.
< 1 Hr. medium 364 PRO
Signing Oracle
This exercise covers how a signing oracle can be used to bypass authorization in place
< 1 Hr. easy 856 PRO
Length Extension Attack
This exercise covers how to use a length extension attack to exploit a directory traversal vulnerability
1-2 Hr. hard 781 PRO
JSON Web Encryption
This exercise covers how you can create your own JWE if you have access to the public key used by the server
< 1 Hr. medium 551 PRO
postMessage()
This exercise covers how insecure calls to the JavaScript function postMessage() can be used to leak sensitive information
< 1 Hr. medium 1274 PRO
CVE-2019-5418
This exercise details the exploitation of CVE-2019-5418 to get code execution
1-2 Hr. hard 518 PRO
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Showing 481–510 of 734 exercises