My authored CTF challenges sources and official writeups.
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| Ctrl+Space CTF Finals 2025 - RicingStar [Author Writeup] | web | medium | authored, client-side, firefox, extensions |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB Business CTF 2025 - Blockout [Author Writeup] | blockchain | medium | authored, proxy-pattern, UUPS, undergassing |
| HTB Business CTF 2025 - Spectral [Author Writeup] | blockchain | easy | authored, pectra, tx.origin, reentrancy, EIP-7702 |
| HTB Business CTF 2025 - Enlistment [Author Writeup] | blockchain | very-easy | authored, warmup, EVM, private-visibility, storage |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB Cyber Apocalypse 2025 - HeliosDEX [Author Writeup] | blockchain | easy | authored, DEX, rounding, unsafe-arithmetic |
| HTB Cyber Apocalypse 2025 - EldoriaGate [Author Writeup] | blockchain | medium | authored, EVM, yul, type-checker, unsafe-casting, private-visibility |
| HTB Cyber Apocalypse 2025 - Eldorion [Author Writeup] | blockchain | very-easy | authored, warmup, multicall, EIP-7702 |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB University CTF 2024 - Stargazer [Author Writeup] | blockchain | hard | authored, proxy-pattern, UUPS, ERC-7201, storage-collision, ecrecover |
| HTB University CTF 2024 - FrontierMarketplace [Author Writeup] | blockchain | medium | authored, ERC-721, approvals |
| HTB University CTF 2024 - ForgottenArtifact [Author Writeup] | blockchain | easy | authored, EVM, storage |
| HTB University CTF 2024 - CryoPod [Author Writeup] | blockchain | very-easy | authored, warmup, events |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB Business CTF 2024 - Brokenswap [Author Writeup] | blockchain | medium | authored, DEX, access-control, x*y=k |
| HTB Business CTF 2024 - MetaVault [Author Writeup] | blockchain | easy | authored, metadata, IPFS |
| HTB Business CTF 2024 - Recruitment [Author Writeup] | blockchain | very-easy | authored, warmup |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB CyberApocalypse 2024 - RussianRoulette [Author Writeup] | blockchain | very-easy | authored, warmup, randomness |
| HTB CyberApocalypse 2024 - Recovery [Author Writeup] | blockchain | very-easy | authored, warmup, bitcoin, electrum |
| HTB CyberApocalypse 2024 - LuckyFaucet [Author Writeup] | blockchain | easy | authored, unsafe-casting, integer-underflow |
| Title | Category | Difficulty | Tags |
|---|---|---|---|
| HTB Business CTF 2023 - 2244 ELECTIONS [Author Writeup] | blockchain, rev | medium | authored, EVM, bytecode, CFG, backdoor |