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WOW [WOWswap] Token

About WOW

Listings

Token 21 months
CoinMarketCap 21 months

Website

WOWswap is a decentralized leveraged trading protocol that runs on top of Pancakeswap DEX based on Binance Smart Chain.

With WowSwap traders can buy and sell their favorite tokens with up to 5X leverage by borrowing extra BNB from the lending pool.

Liquidity providers can supply BNB to the lending pool and receive interest paid by the traders.

Social

Laser Scorebeta Last Audit: 18 February 2022

report
Token seems to be (relatively) fine. It still become a scam, but probability is moderate.

Anti-Scam

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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

WOWSale.buyTokens() (#242-263) ignores return value by token.transfer(msg.sender,buyAmount) (#260)
WOWSale.close() (#265-282) ignores return value by token.transfer(msg.sender,tokensLeft) (#271)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

WOWSale.close() (#265-282) uses a dangerous strict equality:
- require(bool,string)(block.timestamp >= endSale || tokensLeft == 0,Close requirements are not met) (#267)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Reentrancy in WOWSale.buyTokens() (#242-263):
External calls:
- token.transfer(msg.sender,buyAmount) (#260)
External calls sending eth:
- address(msg.sender).transfer(payBack) (#255)
Event emitted after the call(s):
- Sold(msg.sender,buyAmount) (#261)
Reentrancy in WOWSale.close() (#265-282):
External calls:
- token.transfer(msg.sender,tokensLeft) (#271)
External calls sending eth:
- address(msg.sender).transfer(collectedBNB) (#277)
Event emitted after the call(s):
- CloseSale() (#280)
Apply the check-effects-interactions pattern.

Additional information: link

WOWSale.buyTokens() (#242-263) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)((block.timestamp >= startSale && block.timestamp < endSale),Crowdsale is over) (#243)
WOWSale.close() (#265-282) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp >= endSale || tokensLeft == 0,Close requirements are not met) (#267)
Avoid relying on block.timestamp.

Additional information: link

SafeMath.mod(uint256,uint256) (#140-142) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#157-160) is never used and should be removed
Remove unused functions.

Additional information: link

WOWToken.DEC (#296) is set pre-construction with a non-constant function or state variable:
- 10 ** uint256(decimals)
WOWToken._totalSupply (#297) is set pre-construction with a non-constant function or state variable:
- 1000000 * DEC
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Variable WOWSale.DEC (#217) is not in mixedCase
Variable WOWToken.DEC (#296) is not in mixedCase
Variable WOWToken._totalSupply (#297) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in WOWSale.buyTokens() (#242-263):
External calls:
- address(msg.sender).transfer(payBack) (#255)
Event emitted after the call(s):
- Sold(msg.sender,buyAmount) (#261)
Reentrancy in WOWSale.close() (#265-282):
External calls:
- address(msg.sender).transfer(collectedBNB) (#277)
Event emitted after the call(s):
- CloseSale() (#280)
Apply the check-effects-interactions pattern.

Additional information: link

WOWToken.slitherConstructorVariables() (#290-354) uses literals with too many digits:
- _totalSupply = 1000000 * DEC (#297)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

WOWSale.maxBNB (#215) should be constant
WOWSale.startSale (#213) should be constant
WOWSale.tokenPrice (#212) should be constant
WOWSale.totalSold (#210) should be constant
WOWToken.decimals (#295) should be constant
WOWToken.name (#294) should be constant
WOWToken.symbol (#293) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

WOWSale.buyTokens() (#242-263) performs a multiplication on the result of a division:
-tokenPriceInBNB = rate.mul(DEC).div(tokenPrice) (#247)
-buyAmount = value.mul(tokenPriceInBNB).div(DEC) (#259)
Consider ordering multiplication before division.

Additional information: link

Owned.transferOwnership(address) (#175-177) should emit an event for:
- owner = newOwner (#176)
Emit an event for critical parameter changes.

Additional information: link

WOWSale.changeEndSale(uint256) (#234-237) should emit an event for:
- endSale = newEndSale (#235)
Emit an event for critical parameter changes.

Additional information: link

Owned.transferOwnership(address).newOwner (#175) lacks a zero-check on :
- owner = newOwner (#176)
Check that the address is not zero.

Additional information: link

transferOwnership(address) should be declared external:
- Owned.transferOwnership(address) (#175-177)
changeRate(uint256) should be declared external:
- WOWSale.changeRate(uint256) (#228-232)
changeEndSale(uint256) should be declared external:
- WOWSale.changeEndSale(uint256) (#234-237)
close() should be declared external:
- WOWSale.close() (#265-282)
totalSupply() should be declared external:
- WOWToken.totalSupply() (#307-309)
balanceOf(address) should be declared external:
- WOWToken.balanceOf(address) (#311-313)
transfer(address,uint256) should be declared external:
- WOWToken.transfer(address,uint256) (#315-320)
increaseAllowance(address,uint256) should be declared external:
- WOWToken.increaseAllowance(address,uint256) (#328-330)
decreaseAllowance(address,uint256) should be declared external:
- WOWToken.decreaseAllowance(address,uint256) (#332-334)
transferFrom(address,address,uint256) should be declared external:
- WOWToken.transferFrom(address,address,uint256) (#336-342)
allowance(address,address) should be declared external:
- WOWToken.allowance(address,address) (#344-346)
approveAndCall(address,uint256,bytes) should be declared external:
- WOWToken.approveAndCall(address,uint256,bytes) (#348-352)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.


Last post in Twitter was more than 30 days ago


Unable to find Youtube account


Unable to find token contract audit


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find token on CoinHunt

Additional information: link


Unable to find code repository for the project


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

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