Exercises
| Exercise | Avg. Time | Difficulty | Solved by | Tier | |
|---|---|---|---|---|---|
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JWT: Signature Leak
This exercise covers exploiting a JWT signature leak to forge authentication tokens.
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-- | 0 | PRO | |
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CVE-2026-24895: FrankenPHP Path Confusion RCE using Unicode | 1-2 Hr. | 3 | PRO | |
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JWT: Invalid Algorithm
This exercise covers exploiting JWT algorithm validation flaws to bypass signature verification.
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< 1 Hr. | 11 | PRO | |
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CVE-2026-XX888
This challenge covers the review of a CVE in a typescript codebase and its patch
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-- | 58 | PRO | |
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CVE-2025-XX864
This challenge covers the review of a CVE in a typescript codebase and its patch
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< 1 Hr. | 62 | PRO | |
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CVE-2026-XX050
This challenge covers the review of a CVE in a typescript codebase and its patch
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-- | 49 | PRO | |
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CVE-2021-437XX
This challenge covers the review of a CVE in a JavaScript codebase and its patch
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-- | 76 | PRO | |
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CVE-2020-XX079
This challenge covers the review of a CVE in a javascript codebase and its patch
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< 1 Hr. | 88 | PRO | |
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CVE-2021-X27X0
This challenge covers the review of a CVE in a JavaScript codebase and its patch
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-- | 61 | PRO | |
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CVE-2026-XXX50
This challenge covers the review of a CVE in a python codebase and its patch
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-- | 56 | PRO | |
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CVE-2024-XX3X9
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 43 | PRO | |
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CVE-2025-XXX57
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 55 | PRO | |
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CVE-2024-X68X
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 84 | PRO | |
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CVE-2025-6X5X7
This challenge covers the review of a CVE in a python codebase and its patch
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-- | 73 | PRO | |
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CVE-2025-0X6X
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 93 | PRO | |
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CVE-2023-2758X
This challenge covers the review of a CVE in a golang codebase and its patch
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< 1 Hr. | 33 | PRO | |
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CVE-202X-15X7
This challenge covers the review of a CVE in a golang codebase and its patch
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-- | 32 | PRO | |
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CVE-2017-1XX74
This challenge covers the review of a CVE in a golang codebase and its patch
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-- | 44 | PRO | |
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CVE-2025-NOID
This challenge covers the review of a CVE in a java codebase and its patch
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-- | 41 | PRO | |
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CVE-2022-2X457
This challenge covers the review of a CVE in a java codebase and its patch
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-- | 40 | PRO | |
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CVE-2025-627X0
This challenge covers the review of a CVE in a java codebase and its patch
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< 1 Hr. | 44 | PRO | |
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Latex: --shell-escape
This exercise covers how one can leverage latex when pdflatex is used with the --shell-escape option to gain command execution.
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< 1 Hr. | 40 | PRO | |
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Golang Code Review #07
This challenge covers the review of a snippet of code written in Golang.
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-- | 47 | PRO | |
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CVE-2025-X93X0
This challenge covers the review of a CVE in a golang codebase and its patch
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-- | 31 | PRO | |
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CVE-2025-X215X
This challenge covers the review of a CVE in a golang codebase and its patch
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-- | 34 | PRO | |
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CVE-2025-X942X
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 94 | PRO | |
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CVE-2025-6X9X2
This challenge covers the review of a CVE in a python codebase and its patch
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-- | 83 | PRO | |
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CVE-2025-6X85
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 92 | PRO | |
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CVE-2025-X270X
This challenge covers the review of a CVE in a python codebase and its patch
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< 1 Hr. | 107 | PRO | |
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Puzzle 08 | < 1 Hr. | 18 | PRO |
Showing 31–60 of 713 exercises
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