| Challenge | Writeup | Level | Difficulty | Key Field |
|---|---|---|---|---|
 |
Unstoppable | 1 | Medium | DoS & ERC4626 |
 |
Naive Receiver | 2 | Easy | Access Control |
 |
Truster | 3 | Easy | Arbitrary Call |
 |
Side Entrance | 4 | Easy | Missing State-Modifying Functions |
 |
The Rewarder | 5 | Medium | Missing ERC20 Snapshot Implementation |
 |
Selfie | 6 | Medium | Missing ERC20 Snapshot Implementation |
 |
Compromised | 7 | Easy | Price Oracle Manipulation |
 |
Puppet | 8 | Easy | Miscalculations |
 |
Puppet V2 | 9 | Easy | Perfect Storm |
 |
Free Rider | 10 | Easy | UniswapV2 Flash Swap |
 |
Backdoor | 11 | Medium | Unsafe Proxy Creation |
 |
Climber | 12 | Medium | Checks-Effects-Interactions Pattern & Reentrancy |
 |
Wallet Mining | 13 | Hard | Cross Chain Replay Attacks & Uninitialized UUPS Implementation |
 |
Puppet V3 | 14 | Medium | TWAP Oracle |
 |
ABI Smuggling | 15 | Hard | ABI Encoding Of Dynamic Types |