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Bug Bounty rewards are grouped by severity and the impact of the vulnerability. Examples and descriptions of the type of vulnerabilities that correspond to each severity level can be found below. The payout amount has a 5 tier structure with separate scalesfor website/apps and smart contracts.

Description of vulnerability and your proof of concept or validation steps

Short description of the vulnerability and the affected asset.

Vulnerability Title

Unlocked Compiler Version

Missing Error Messages

Lack of Zero Address Validation

Centralization Risk

Missing Emit Events

Unused Return Values

Function Visibility Optimization

Unclear Address

Potential Preemptive Attack

Set constant to Variables

Initial Role distribution

Visibility Specifiers Missing

Parameter Sequence Check

Redundant Variable Initialization

Unused Variable

Third Party Dependencies

Redundant Variable Declaration

Discussion For Function `setPceUpGrade()` and `setMeliBurns()`

Susceptible to Signature Malleability

meli games

SignUtil.sol

MelioraCommonSpace.sol

MelioraManager.sol

HasNoEther.sol

MelioraDB.sol

auction

ERC721

MelioraAuction.sol

TokenDB.sol

manager

lifecycle

MelioraBaseEnumerable.sol

MelioraCore.sol

storage

Meli games

Leaderboards

Due Diligence Tools

Resources