Code Review Badge

users completed icon
224 Completed
video icon
84 Videos
book icon
107 Exercises

The Code Review Badge is our badge on code review. It covers the discovery of weaknesses and vulnerabilities using source code review.

Introduction Videos

Snippet Review Exercises

Easy
code review badge icon
Golang Snippet #01
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1571 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #02
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1295 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Golang Snippet #03
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1095 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #04
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1277 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #05
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1166 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #06
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1050 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #07
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1072 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Golang Snippet #08
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1001 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #09
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 942 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #10
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1048 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Golang Snippet #11
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1036 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Golang Snippet #12
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 932 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
PHP Snippet #01
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 2294 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
PHP Snippet #02
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1995 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
PHP Snippet #03
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1767 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
PHP Snippet #04
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1669 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
PHP Snippet #05
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1578 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
PHP Snippet #06
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1664 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
PHP Snippet #07
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1551 students
  • Takes < 1 Hr. on average

 

Hard
code review badge icon
PHP Snippet #08
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1461 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
PHP Snippet #09
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1371 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #01
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 856 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Ruby Snippet #02
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 948 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #03
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 850 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Ruby Snippet #04
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 865 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #05
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 941 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #06
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 844 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #07
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 705 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Ruby Snippet #08
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 751 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Ruby Snippet #09
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 709 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Javascript Snippet #01
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1995 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Javascript Snippet #02
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1673 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Javascript Snippet #03
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1688 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Javascript Snippet #04
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1577 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Javascript Snippet #05
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1635 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Javascript Snippet #06
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1519 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Javascript Snippet #07
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1486 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #01
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1293 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #02
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1242 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
TypeScript Snippet #03
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1171 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #04
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1078 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
TypeScript Snippet #05
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1106 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #06
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 970 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #07
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 917 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
TypeScript Snippet #08
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 982 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
TypeScript Snippet #09
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1016 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #01
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1667 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Java Snippet #02
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1622 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #03
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1471 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #04
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1433 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #05
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1314 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Java Snippet #06
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1234 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #07
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1564 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #08
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1595 students
  • Takes < 1 Hr. on average

 

Medium
code review badge icon
Java Snippet #09
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1218 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #10
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1341 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #11
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1233 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Java Snippet #12
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1187 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #01
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 2150 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #02
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1809 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #03
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1641 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #04
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1498 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #05
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1674 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #06
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1617 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #07
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1491 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #08
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1425 students
  • Takes < 1 Hr. on average

 

Easy
code review badge icon
Python Snippet #09
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1611 students
  • Takes < 1 Hr. on average

 

Patch Review Exercises

Easy
code review badge icon
CVE-2008-1x3x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 849 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
code review badge icon
CVE-2008-4x9x
  • This challenge covers the review of a CVE and its patch
  • Completed by 611 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
code review badge icon
CVE-2008-5x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 698 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
code review badge icon
CVE-2009-3x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 662 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
code review badge icon
CVE-2020-17xx7
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 1063 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
CVE-2020-9x9x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 830 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
CVE-2006-4xxx
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 651 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
code review badge icon
CVE-2006-4xxx_ii
  • This challenge covers the review of a CVE and its patch
  • Completed by 536 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
code review badge icon
CVE-2020-11xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 641 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
CVE-2020-17xx8
  • This challenge covers the review of a CVE and its patch
  • Completed by 630 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
CVE-2021-37xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 614 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
code review badge icon
CVE-2021-39x3x
  • This challenge covers the review of a CVE and its patch
  • Completed by 520 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
CVE-2021-4379x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 631 students
  • Takes < 1 Hr. on average
  • Golang

 

Easy
code review badge icon
CVE-2021-45xx9
  • This challenge covers a vulnerable snippet in a real Python application
  • Completed by 661 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
code review badge icon
CVE-2022-3x7x1
  • This challenge covers the review of a CVE and its patch
  • Completed by 649 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
code review badge icon
CVE-2008-5x8x_ii
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 515 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
code review badge icon
CVE-2019-5x2x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 495 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
code review badge icon
CVE-2020-13xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 540 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
code review badge icon
CVE-2021-381xx
  • This challenge covers the review of a CVE and its patch
  • Completed by 553 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
code review badge icon
CVE-2021-4xx50
  • This challenge covers the review of a CVE and its patch
  • Completed by 717 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
code review badge icon
CVE-2022-26xx9
  • This challenge covers a vulnerable snippet in a real Java application
  • Completed by 501 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
code review badge icon
CVE-2005-2x8x
  • This challenge covers the review of a CVE and its patch
  • Completed by 527 students
  • Takes < 1 Hr. on average
  • PHP

 

Code Review Exercises

Medium
code review badge icon
Code Review 01
  • This exercise is one of our challenges to help you learn how to review real source code
  • 2 videos
  • Completed by 777 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Medium
code review badge icon
Code Review 02
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 517 students
  • Takes 1-2 Hrs. on average
  • Python

 

Hard
code review badge icon
Code Review 03
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 351 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Hard
code review badge icon
Code Review 04
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 431 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Hard
code review badge icon
Code Review 05
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 313 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Medium
code review badge icon
Code Review 06
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 279 students
  • Takes 2-4 Hrs. on average
  • Golang

 

Hard
code review badge icon
Code Review 07
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 332 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Easy
code review badge icon
Code Review 08
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 411 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Hard
code review badge icon
Code Review 09
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 304 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Medium
code review badge icon
Code Review 10
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 370 students
  • Takes < 1 Hr. on average
  • Golang

 

Hard
code review badge icon
Code Review 11
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 262 students
  • Takes 2-4 Hrs. on average
  • C#/.Net

 

Medium
code review badge icon
Code Review 12
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 442 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
code review badge icon
Code Review 13
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 316 students
  • Takes 2-4 Hrs. on average
  • Java

 

Medium
code review badge icon
Code Review 14
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 408 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
code review badge icon
Code Review 15
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 384 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
code review badge icon
Code Review 16
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 400 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
code review badge icon
Code Review 17
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 292 students
  • Takes 1-2 Hrs. on average
  • .Net

 

Medium
code review badge icon
Code Review 18
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 278 students
  • Takes 1-2 Hrs. on average
  • Java