Exercises

Exercise Avg. Time Difficulty Solved by Tier
CVE-2023-3219X
This challenge covers the review of a CVE in a Golang project and its patch
-- hard 89 PRO
CVE-2024-433XX
This challenge covers the review of a CVE in a Python codebase and its patch
< 1 Hr. hard 157 PRO
CVE-2025-3X5X
This challenge covers the review of a CVE in a Golang project
< 1 Hr. hard 75 PRO
CVE-2024-419XX
This challenge covers the review of a CVE in a Python codebase and its patch
< 1 Hr. hard 204 PRO
Golang Code Review #10
This challenge covers the review of a simple snippet of code written in Go.
< 1 Hr. hard 119 PRO
Golang Code Review #08
This challenge covers the review of a snippet of code written in Golang and has been created to help improve your security code review skills.
< 1 Hr. hard 117 PRO
Golang Code Review #06
This challenge covers the review of a vulnerable snippet of Golang and has been created to help improve your security code review skills.
< 1 Hr. hard 122 PRO
SAML: CVE-2025-25291
This exercise covers the exploitation of CVE-2025-25291 (impacting ruby-saml)
2-4 Hr. hard 17 PRO
SAML: CVE-2025-29775 Signed Metadata
This exercise covers the exploitation of CVE-2025-29775 (impacting xml-crypto) without XMLResponse
2-4 Hr. hard 13 PRO
CVE-2024-6X3X
This challenge covers the review of a CVE (original vulnerable code and diff) of a real go codebase
< 1 Hr. hard 88 PRO
CVE-2025-XX95X
This challenge is part of our go code review challenges designed to teach you security code review by reviewing patches
< 1 Hr. hard 98 PRO
CVE-2019-X03X
This challenge covers the review of a CVE in a golang codebase and its patch
< 1 Hr. hard 92 PRO
CVE-2019-379X
This challenge is part of our golang code review challenges designed to teach you security code review by reviewing patches
< 1 Hr. hard 141 PRO
SAML: CVE-2025-29775
This exercise covers the exploitation of CVE-2025-29775 (impacting xml-crypto)
1-2 Hr. hard 20 PRO
CVE-2022-37X1
This challenge covers the review of a CVE in a go codebase and its patch
< 1 Hr. hard 108 PRO
UUIDv1 IDOR 1-2 Hr. medium 219 PRO
CVE-2023-XX463
This challenge covers the review of a CVE in a Go codebase and its patch
-- hard 107 PRO
Golang Code Review #04
This challenge covers the review of a snippet of code written in Golang.
-- hard 145 PRO
API Mass-Assignment 03 < 1 Hr. medium 424 PRO
API Mass-Assignment 02 < 1 Hr. medium 457 PRO
API Mass-Assignment 01 < 1 Hr. medium 484 PRO
Mongo IDOR IV 2-4 Hr. hard 137 PRO
Mongo IDOR III < 1 Hr. medium 239 PRO
CVE-2024-X5X87
This challenge covers the review of a CVE in a go codebase and its patch
-- hard 108 PRO
API JWT REVOCATION JWT
This exercise covers how to bypass a weak JWT Revocation Mechanism.
< 1 Hr. easy 467 PRO
CVE-2022-XX975
This challenge covers the review of a CVE in a Go codebase and its patch
< 1 Hr. hard 113 PRO
Puzzle 06
Leverage a weak implementation of lowercase to access arbitrary files
< 1 Hr. hard 26 PRO
Puzzle 07
Leverage a weak implementation of lowercase to access arbitrary files
1-2 Hr. hard 24 PRO
API 18
This exercise covers how to exploit an authorization issue in an API.
< 1 Hr. medium 550 PRO
API 19
This exercise covers how to exploit an authorization issue in an API.
< 1 Hr. medium 537 PRO
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