Code Review Badge

99 Completed
84 Videos
107 Exercises

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

Code Review Videos

Snippet Review Exercises

Easy
Golang Snippet #01
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1272 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #02
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1025 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #03
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 847 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #04
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 1010 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #05
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 914 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #06
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 806 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #07
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 833 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #08
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 769 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #09
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 720 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #10
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 820 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #11
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 808 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #12
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 709 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #01
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1949 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #02
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1678 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #03
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1452 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #04
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1376 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #05
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1286 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #06
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1367 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #07
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1242 students
  • Takes < 1 Hr. on average

 

Hard
PHP Snippet #08
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1152 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #09
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1086 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #01
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 636 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #02
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 599 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #03
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 634 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #04
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 570 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #05
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 650 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #06
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 632 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #07
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 504 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #08
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 548 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #09
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 505 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #01
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1655 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #02
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1341 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #03
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1361 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #04
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1259 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #05
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1321 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #06
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1207 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #07
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1178 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #01
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 1018 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #02
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 963 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #03
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 900 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #04
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 818 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #05
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 844 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #06
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 729 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #07
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 683 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #08
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 740 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #09
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 771 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #01
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1347 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #02
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1315 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #03
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1160 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #04
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1132 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #05
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1034 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #06
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 950 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #07
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1282 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #08
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1320 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #09
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 946 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #10
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 1073 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #11
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 960 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #12
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 922 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #01
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1607 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #02
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1466 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #03
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1312 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #04
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1170 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #05
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1217 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #06
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1305 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #07
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1185 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #08
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1152 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #09
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1185 students
  • Takes < 1 Hr. on average

 

Patch Review Exercises

Easy
CVE-2008-1x3x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 629 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
CVE-2008-4x9x
  • This challenge covers the review of a CVE and its patch
  • Completed by 430 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
CVE-2008-5x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 505 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2009-3x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 484 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2020-17xx7
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 856 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2020-9x9x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 660 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2006-4xxx
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 486 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2006-4xxx_ii
  • This challenge covers the review of a CVE and its patch
  • Completed by 384 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2020-11xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 485 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2020-17xx8
  • This challenge covers the review of a CVE and its patch
  • Completed by 476 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2021-37xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 448 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
CVE-2021-39x3x
  • This challenge covers the review of a CVE and its patch
  • Completed by 371 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2021-4379x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 490 students
  • Takes < 1 Hr. on average
  • Golang

 

Easy
CVE-2021-45xx9
  • This challenge covers a vulnerable snippet in a real Python application
  • Completed by 506 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
CVE-2022-3x7x1
  • This challenge covers the review of a CVE and its patch
  • Completed by 502 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2008-5x8x_ii
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 357 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
CVE-2019-5x2x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 344 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
CVE-2020-13xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 392 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2021-381xx
  • This challenge covers the review of a CVE and its patch
  • Completed by 402 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2021-4xx50
  • This challenge covers the review of a CVE and its patch
  • Completed by 579 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
CVE-2022-26xx9
  • This challenge covers a vulnerable snippet in a real Java application
  • Completed by 362 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
CVE-2005-2x8x
  • This challenge covers the review of a CVE and its patch
  • Completed by 374 students
  • Takes < 1 Hr. on average
  • PHP

 

Code Review Exercises

Medium
Code Review 01
  • This exercise is one of our challenges to help you learn how to review real source code
  • 2 videos
  • Completed by 593 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Medium
Code Review 02
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 360 students
  • Takes 1-2 Hrs. on average
  • Python

 

Hard
Code Review 03
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 208 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Hard
Code Review 04
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 293 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Hard
Code Review 05
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 181 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Medium
Code Review 06
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 150 students
  • Takes 2-4 Hrs. on average
  • Golang

 

Hard
Code Review 07
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 210 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Easy
Code Review 08
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 274 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Hard
Code Review 09
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 181 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Medium
Code Review 10
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 245 students
  • Takes < 1 Hr. on average
  • Golang

 

Hard
Code Review 11
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 133 students
  • Takes 2-4 Hrs. on average
  • C#/.Net

 

Medium
Code Review 12
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 308 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
Code Review 13
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 179 students
  • Takes 2-4 Hrs. on average
  • Java

 

Medium
Code Review 14
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 280 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
Code Review 15
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 259 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
Code Review 16
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 267 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
Code Review 17
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 162 students
  • Takes 1-2 Hrs. on average
  • .Net

 

Medium
Code Review 18
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 146 students
  • Takes 1-2 Hrs. on average
  • Java