API Badge

29 Videos
36 Exercises

The API badge is our set of exercises created to help you learn API testing. The first few challenges are based on challenges you already solved to get you more confident with API testing and review your knowledge and methodology. Then, harder challenges are provided to get you to the next level.

Exercises

Easy
API 01
  • This exercise is the API version of an exercise you already solved in the Essential Badge. You should use it to get more confident with discovering vulnerabilities without any hint on what to look for.
  • 1 video
  • Completed by 2943 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API
  • cwe-639,cwe-284

 

Easy
API 02
  • This exercise is the API version of an exercise you already solved in another badge. You should use it to get more confident with discovering vulnerabilities without any hint on what to look for.
  • 1 video
  • Completed by 2463 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API
  • CWE-327

 

Easy
API 03
  • This exercise is the API version of an exercise you already solved in another badge. You should use it to get more confident with discovering vulnerabilities without any hint on what to look for.
  • 1 video
  • Completed by 1909 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API
  • CWE-327

 

Easy
API 04
  • This exercise covers how one can inspect JavaScript code to identify unused endpoints.
  • 1 video
  • Completed by 1856 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API, Angular
  • CWE-1028

 

Easy
API 05
  • This exercise covers how one can inspect JavaScript code to identify unused endpoints.
  • 1 video
  • Completed by 1774 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API, Angular
  • CWE-1028

 

Easy
API 06
  • This exercise covers how one can inspect JavaScript code to identify unused endpoints.
  • 1 video
  • Completed by 1495 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API, Angular
  • CWE-1028

 

Medium
API 07
  • This exercise covers how one can inspect JavaScript code to identify information leak.
  • 1 video
  • Completed by 1341 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API, Angular
  • CWE-950

 

Medium
API 08
  • This exercise covers how one can inspect HTTP responses to identify information leaks.
  • 1 video
  • Completed by 1267 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-200

 

Medium
API 09
  • This exercise covers how one can inspect HTTP responses to identify information leaks.
  • 1 video
  • Completed by 433 students
  • Takes < 1 Hr. on average
  • Rails/Angular

 

Medium
API 10
  • This exercise covers a common filter bypass in API.
  • 1 video
  • Completed by 341 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Medium
API 11
  • This exercise covers a common filter bypass in API.
  • 1 video
  • Completed by 323 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Medium
API 12
  • This exercise covers a common filter bypass in API.
  • 1 video
  • Completed by 294 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Hard
API 13
  • This exercise covers a complex filter bypass in API.
  • 1 video
  • Completed by 267 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Medium
API 14
  • This exercise covers how to exploit a leaked encrypted password with an API.
  • 1 video
  • Completed by 282 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Hard
API 15
  • This exercise covers how to exploit a leaked encrypted password with an API.
  • 1 video
  • Completed by 232 students
  • Takes < 1 Hr. on average
  • Golang/Vue

 

Medium
API 16
  • This exercise covers how to exploit an authorization issue in an API.
  • Completed by 43 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
API 17
  • This exercise covers how to exploit an authorization issue in an API.
  • Completed by 45 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
API 18
  • This exercise covers how to exploit an authorization issue in an API.
  • Completed by 32 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
API 19
  • This exercise covers how to exploit an authorization issue in an API.
  • Completed by 29 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
API 20
  • This exercise covers how to exploit an authorization issue in an API.
  • Completed by 35 students
  • Takes < 1 Hr. on average
  • Golang

 

Easy
API JWT REVOCATION
  • This exercise covers how to bypass a weak JWT Revocation Mechanism.
  • Completed by 34 students
  • Takes < 1 Hr. on average
  • Ruby-on-Rails
  • jwt

 

Coming soon
Medium
API Mobile 01
  • This exercise covers how you can intercept traffic from a mobile application and uses this to gain access to sensitive information.
  • Takes -- on average
  • Node/React Native

 

Easy
API Payments 01
  • This exercise covers a simple payments bypass.
  • 2 videos
  • Completed by 1481 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • API
  • CWE-288,CWE-354,CWE-472

 

Medium
API Payments 02
  • This exercise covers a simple payments bypass.
  • 2 videos
  • Completed by 1158 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-354,CWE-472

 

Medium
API Payments 03
  • This exercise covers a simple payments bypass.
  • 2 videos
  • Completed by 1000 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-354,CWE-472

 

Medium
API Payments 04
  • This exercise covers how to abuse a shopping cart allowing users to apply a voucher..
  • 2 videos
  • Completed by 887 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-472

 

Hard
API Payments 05
  • This exercise covers how to abuse a shopping cart allowing users to apply a voucher.
  • 1 video
  • Completed by 642 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-345,CWE-693

 

Medium
API Payments 06
  • This exercise covers a simple payments bypass.
  • 2 videos
  • Completed by 713 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-472

 

Medium
API Payments 07
  • This exercise covers a way to manipulate a shopping cart to lower the total amount
  • 2 videos
  • Completed by 680 students
  • Takes < 1 Hr. on average
  • Rails/Angular
  • CWE-353

 

Easy
GraphQL Authorization 01
  • This exercise covers a simple authorization issue in a GraphQL application.
  • Completed by 53 students
  • Takes < 1 Hr. on average
  • GraphQL/Node

 

Easy
GraphQL Authorization 02
  • This exercise covers a simple authorization issue in a GraphQL application.
  • Completed by 51 students
  • Takes < 1 Hr. on average
  • GraphQL/Node

 

Medium
Mongo IDOR
  • This challenge covers how to exploit an IDOR when Mongo IDs are used
  • 1 video
  • Completed by 845 students
  • Takes < 1 Hr. on average
  • ROR/MongoDB

 

Coming soon
Medium
Mongo IDOR II
  • This challenge covers how to recover a Mongo ID to leverage an IDOR
  • Takes -- on average
  • ROR/MongoDB

 

Medium
ORM LEAK 01
  • This exercise covers how to exploit a simple ORM leak.
  • Completed by 53 students
  • Takes 1-2 Hrs. on average
  • Python

 

Medium
ORM LEAK 02
  • This exercise covers how to exploit an ORM leak vulnerability
  • Completed by 35 students
  • Takes < 1 Hr. on average
  • Python

 

Medium
ORM LEAK: SQLite
  • This exercise covers how to exploit an ORM leak vulnerability
  • Completed by 26 students
  • Takes < 1 Hr. on average
  • Python