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MET [MeetWay] Token

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MEETWAY -✅KYC - AUDIT by SolidProof- A SocialFi based on Web3 mobile application allows users to ✅MOVE-TO-EARN, RUN-TO-EARN, and DRIVE-TO-EARN, with the unique function of Music & Sport to Earn integrated that distinguishes Meetway from any other M2E applications! ✅ Lock liquidity for 5 years ✅ SPECIAL BONUS: buy at least 1 BNB during the Softcap will receive MWT tokens equal to 10% of the amount purchased MET & The top 10 buyers of MET tokens will receive random rarity NFT box

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Laser Scorebeta Last Audit: 13 May 2022

report
Code:

Third Party Audit: untrusted audit

METWAY.withdrawTokens(address,address) (#938-951) ignores return value by ERC20(_tokenAddr).transfer(_to,ERC20(_tokenAddr).balanceOf(address(this))) (#947-950)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

DexListing._updateAndGetListingFee(address,address,uint256) (#195-224) uses a dangerous strict equality:
- listingStartAt == 0 (#203)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link


Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains


Contract ownership is not renounced (belongs to a wallet)

Reentrancy in DexListing._updateAndGetListingFee(address,address,uint256) (#195-224):
External calls:
- DexPair._isPair(recipient_) && amount_ > 0 (#205)
State variables written after the call(s):
- _startListing() (#206)
- listingStartAt = block.timestamp (#173)
Apply the check-effects-interactions pattern.

Additional information: link

METWAY._transfer(address,address,uint256).transferFee (#855) shadows:
- TransferFee.transferFee() (#799-805) (function)
METWAY.withdrawBalance()._owner (#934) shadows:
- Ownable._owner (#39) (state variable)
Rename the local variables that shadow another component.

Additional information: link

METWAY.withdrawBalance()._owner (#934) lacks a zero-check on :
- _owner.transfer(address(this).balance) (#935)
Check that the address is not zero.

Additional information: link

Reentrancy in METWAY._transfer(address,address,uint256) (#833-872):
External calls:
- fee = _updateAndGetListingFee(sender_,recipient_,amount_) (#840)
- DexPair._isPair(recipient_) && amount_ > 0 (#205)
- (success,data) = pair_.call((abi.encodeWithSelector(FACTORY_SELECTOR))) (#129-130)
- ! DexPair._isPair(sender_) && ! DexPair._isPair(recipient_) (#215)
- DexPair._isPair(recipient_) (#841)
- DexPair._isPair(sender_) (#844)
State variables written after the call(s):
- super._transfer(sender_,_getTransferFeeTo(),fee) (#851)
- _balances[sender] = senderBalance - amount (#612)
- _balances[recipient] += amount (#614)
- super._transfer(sender_,recipient_,transferA) (#853)
- _balances[sender] = senderBalance - amount (#612)
- _balances[recipient] += amount (#614)
Reentrancy in METWAY._transfer(address,address,uint256) (#833-872):
External calls:
- transferFee = _getTransferFee(sender_,recipient_,amount_) (#855)
- DexPair._isPair(recipient_) (#780)
- DexPair._isPair(sender_) (#783)
- (success,data) = pair_.call((abi.encodeWithSelector(FACTORY_SELECTOR))) (#129-130)
- DexPair._isPair(recipient_) (#856)
- DexPair._isPair(sender_) (#859)
State variables written after the call(s):
- super._transfer(sender_,_getTransferFeeTo(),transferFee) (#866)
- _balances[sender] = senderBalance - amount (#612)
- _balances[recipient] += amount (#614)
- super._transfer(sender_,recipient_,transferA_scope_0) (#869)
- _balances[sender] = senderBalance - amount (#612)
- _balances[recipient] += amount (#614)
Reentrancy in DexListing._updateAndGetListingFee(address,address,uint256) (#195-224):
External calls:
- DexPair._isPair(recipient_) && amount_ > 0 (#205)
State variables written after the call(s):
- _startListing() (#206)
- listingFeePercent = 100 (#174)
Reentrancy in DexListing.constructor(uint256) (#158-168):
External calls:
- wbnbPair = DexPair._createPair(router,DexPair.wbnb) (#166)
- busdPair = DexPair._createPair(router,DexPair.busd) (#167)
State variables written after the call(s):
- busdPair = DexPair._createPair(router,DexPair.busd) (#167)
Reentrancy in METWAY.constructor() (#813-819):
External calls:
- DexListing(100) (#815)
- IUniswapV2Factory(IUniswapV2Router02(router_).factory()).createPair(address(this),pairedToken_) (#141-142)
- wbnbPair = DexPair._createPair(router,DexPair.wbnb) (#166)
- busdPair = DexPair._createPair(router,DexPair.busd) (#167)
State variables written after the call(s):
- _mint(msg.sender,100000000 * (10 ** 18)) (#817)
- _balances[account] += amount (#636)
- _mint(msg.sender,100000000 * (10 ** 18)) (#817)
- _totalSupply += amount (#635)
- _setTransferFee(msg.sender,0,0,0) (#818)
- _transferFee.to = to_ (#765)
- _transferFee.buy = buyFee_ (#766)
- _transferFee.sell = sellFee_ (#767)
- _transferFee.normal = normalFee_ (#768)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in METWAY._transfer(address,address,uint256) (#833-872):
External calls:
- fee = _updateAndGetListingFee(sender_,recipient_,amount_) (#840)
- DexPair._isPair(recipient_) && amount_ > 0 (#205)
- (success,data) = pair_.call((abi.encodeWithSelector(FACTORY_SELECTOR))) (#129-130)
- ! DexPair._isPair(sender_) && ! DexPair._isPair(recipient_) (#215)
- DexPair._isPair(recipient_) (#841)
- DexPair._isPair(sender_) (#844)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#616)
- super._transfer(sender_,_getTransferFeeTo(),fee) (#851)
- Transfer(sender,recipient,amount) (#616)
- super._transfer(sender_,recipient_,transferA) (#853)
Reentrancy in METWAY._transfer(address,address,uint256) (#833-872):
External calls:
- transferFee = _getTransferFee(sender_,recipient_,amount_) (#855)
- DexPair._isPair(recipient_) (#780)
- DexPair._isPair(sender_) (#783)
- (success,data) = pair_.call((abi.encodeWithSelector(FACTORY_SELECTOR))) (#129-130)
- DexPair._isPair(recipient_) (#856)
- DexPair._isPair(sender_) (#859)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#616)
- super._transfer(sender_,_getTransferFeeTo(),transferFee) (#866)
- Transfer(sender,recipient,amount) (#616)
- super._transfer(sender_,recipient_,transferA_scope_0) (#869)
Reentrancy in METWAY.constructor() (#813-819):
External calls:
- DexListing(100) (#815)
- IUniswapV2Factory(IUniswapV2Router02(router_).factory()).createPair(address(this),pairedToken_) (#141-142)
- wbnbPair = DexPair._createPair(router,DexPair.wbnb) (#166)
- busdPair = DexPair._createPair(router,DexPair.busd) (#167)
Event emitted after the call(s):
- SetTransferFee(_transferFee) (#769)
- _setTransferFee(msg.sender,0,0,0) (#818)
- Transfer(address(0),account,amount) (#637)
- _mint(msg.sender,100000000 * (10 ** 18)) (#817)
Apply the check-effects-interactions pattern.

Additional information: link

DexListing._updateListingFee() (#183-193) uses timestamp for comparisons
Dangerous comparisons:
- pastTime > listingDuration (#187)
DexListing._updateAndGetListingFee(address,address,uint256) (#195-224) uses timestamp for comparisons
Dangerous comparisons:
- listingStartAt == 0 (#203)
- listingStartAt + listingDuration <= block.timestamp (#211)
- listingFeePercent < 2 (#220)
Avoid relying on block.timestamp.

Additional information: link

METWAY.isContract(address) (#953-959) uses assembly
- INLINE ASM (#955-957)
Do not use evm assembly.

Additional information: link

Context._msgData() (#21-23) is never used and should be removed
ERC20._burn(address,uint256) (#653-668) is never used and should be removed
Remove unused functions.

Additional information: link

Low level call in DexPair._isPair(address) (#122-132):
- (success,data) = pair_.call((abi.encodeWithSelector(FACTORY_SELECTOR))) (#129-130)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Constant DexPair.wbnb (#115) is not in UPPER_CASE_WITH_UNDERSCORES
Constant DexPair.busd (#116) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter METWAY.withdrawTokens(address,address)._tokenAddr (#938) is not in mixedCase
Parameter METWAY.withdrawTokens(address,address)._to (#938) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable GasPriceController._maxGasPrice (#265) is too similar to GasPriceController._setMaxGasPrice(uint256).maxGasPrice_ (#268)
Variable GasPriceController._maxGasPrice (#265) is too similar to METWAY.setMaxGasPrice(uint256).maxGasPrice_ (#909)
Prevent variables from having similar names.

Additional information: link

METWAY.constructor() (#813-819) uses literals with too many digits:
- _mint(msg.sender,100000000 * (10 ** 18)) (#817)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DexPair.wbnb (#115) is never used in DexPair (#110-144)
DexPair.busd (#116) is never used in DexPair (#110-144)
TransferFee.FACTORY_SELECTOR (#738) is never used in METWAY (#808-961)
Remove unused state variables.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#72-74)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#80-83)
name() should be declared external:
- ERC20.name() (#440-442)
symbol() should be declared external:
- ERC20.symbol() (#448-450)
decimals() should be declared external:
- ERC20.decimals() (#465-467)
totalSupply() should be declared external:
- ERC20.totalSupply() (#472-474)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#479-481)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#491-494)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#499-501)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#510-513)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#528-542)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#556-559)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#575-583)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.


Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive.


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Twitter account has few posts

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BscScan page for the token does not contain additional info: website, socials, description, etc.

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Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)


Unable to verify token contract address on the website


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

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