API Badge

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.

41 exercises 111 completed 43 videos

Exercises

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 3726 students
Takes < 1 Hr. on average
Rails/Angular
API
cwe-639,cwe-284

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 3199 students
Takes < 1 Hr. on average
Rails/Angular
API
CWE-327

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 2530 students
Takes < 1 Hr. on average
Rails/Angular
API
CWE-327

This exercise covers how one can inspect JavaScript code to identify unused endpoints.
1 video
Completed by 2564 students
Takes < 1 Hr. on average
Rails/Angular
API, Angular
CWE-1028

This exercise covers how one can inspect JavaScript code to identify unused endpoints.
1 video
Completed by 2374 students
Takes < 1 Hr. on average
Rails/Angular
API, Angular
CWE-1028

This exercise covers how one can inspect JavaScript code to identify unused endpoints.
1 video
Completed by 2057 students
Takes < 1 Hr. on average
Rails/Angular
API, Angular
CWE-1028

This exercise covers how one can inspect JavaScript code to identify information leak.
1 video
Completed by 1924 students
Takes < 1 Hr. on average
Rails/Angular
API, Angular
CWE-950

This exercise covers how one can inspect HTTP responses to identify information leaks.
1 video
Completed by 1828 students
Takes < 1 Hr. on average
Rails/Angular
CWE-200

This exercise covers how one can inspect HTTP responses to identify information leaks.
1 video
Completed by 1024 students
Takes < 1 Hr. on average
Rails/Angular

This exercise covers a common filter bypass in API.
1 video
Completed by 890 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers a common filter bypass in API.
1 video
Completed by 821 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers a common filter bypass in API.
1 video
Completed by 780 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers a complex filter bypass in API.
1 video
Completed by 702 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers how to exploit a leaked encrypted password with an API.
1 video
Completed by 732 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers how to exploit a leaked encrypted password with an API.
1 video
Completed by 642 students
Takes < 1 Hr. on average
Golang/Vue

This exercise covers how to exploit an authorization issue in an API.
2 videos
Completed by 571 students
Takes < 1 Hr. on average
Golang

This exercise covers how to exploit an authorization issue in an API.
2 videos
Completed by 480 students
Takes < 1 Hr. on average
Golang

This exercise covers how to exploit an authorization issue in an API.
2 videos
Completed by 568 students
Takes < 1 Hr. on average
Golang

This exercise covers how to exploit an authorization issue in an API.
1 video
Completed by 554 students
Takes < 1 Hr. on average
Golang

This exercise covers how to exploit an authorization issue in an API.
1 video
Completed by 536 students
Takes < 1 Hr. on average
Golang

API JWT REVOCATION

This exercise covers how to bypass a weak JWT Revocation Mechanism.
1 video
Completed by 489 students
Takes < 1 Hr. on average
Ruby-on-Rails
JWT

API Mass-Assignment 01

1 video
Completed by 502 students
Takes < 1 Hr. on average
Ruby-on-Rails

API Mass-Assignment 02

1 video
Completed by 474 students
Takes < 1 Hr. on average
Ruby-on-Rails

API Mass-Assignment 03

1 video
Completed by 443 students
Takes < 1 Hr. on average
Ruby-on-Rails

API Payments 01

This exercise covers a simple payments bypass.
2 videos
Completed by 2025 students
Takes < 1 Hr. on average
Rails/Angular
API
CWE-288,CWE-354,CWE-472

API Payments 02

This exercise covers a simple payments bypass.
2 videos
Completed by 1527 students
Takes < 1 Hr. on average
Rails/Angular
CWE-354,CWE-472

API Payments 03

This exercise covers a simple payments bypass.
2 videos
Completed by 1360 students
Takes < 1 Hr. on average
Rails/Angular
CWE-354,CWE-472

API Payments 04

This exercise covers how to abuse a shopping cart allowing users to apply a voucher..
2 videos
Completed by 1251 students
Takes < 1 Hr. on average
Rails/Angular
CWE-472

API Payments 05

This exercise covers how to abuse a shopping cart allowing users to apply a voucher.
1 video
Completed by 938 students
Takes < 1 Hr. on average
Rails/Angular
CWE-345,CWE-693

API Payments 06

This exercise covers a simple payments bypass.
2 videos
Completed by 1032 students
Takes < 1 Hr. on average
Rails/Angular
CWE-472

API Payments 07

This exercise covers a way to manipulate a shopping cart to lower the total amount
2 videos
Completed by 998 students
Takes < 1 Hr. on average
Rails/Angular
CWE-353

GraphQL Authorization 01

This exercise covers a simple authorization issue in a GraphQL application.
1 video
Completed by 441 students
Takes < 1 Hr. on average
GraphQL/Node

GraphQL Authorization 02

This exercise covers a simple authorization issue in a GraphQL application.
1 video
Completed by 451 students
Takes < 1 Hr. on average
GraphQL/Node

This challenge covers how to exploit an IDOR when Mongo IDs are used
1 video
Completed by 1211 students
Takes < 1 Hr. on average
ROR/MongoDB

This challenge covers how to recover a Mongo ID to leverage an IDOR
Completed by 367 students
Takes < 1 Hr. on average
ROR/MongoDB

Completed by 252 students
Takes < 1 Hr. on average
ROR/MongoDB

Completed by 149 students
Takes 2-4 Hrs. on average
ROR/MongoDB

This exercise covers how to exploit a simple ORM leak.
Completed by 282 students
Takes 1-2 Hrs. on average
Python

This exercise covers how to exploit an ORM leak vulnerability
Completed by 238 students
Takes < 1 Hr. on average
Python

ORM LEAK: SQLite

This exercise covers how to exploit an ORM leak vulnerability
Completed by 164 students
Takes 1-2 Hrs. on average
Python

Completed by 225 students
Takes 1-2 Hrs. on average
ROR