RareCircles simplifies the business of NFTs so you can focus on growing your community.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Reentrancy in RareCircle._transfer(address,address,uint256) (RareCircle.sol#164-191):
External calls:
- swapAndCharge() (RareCircle.sol#179)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
External calls sending eth:
- swapAndCharge() (RareCircle.sol#179)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _LpFee = _previousLpFee (RareCircle.sol#149)
- _LpFee = 0 (RareCircle.sol#145)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _balances[sender] = _balances[sender].sub(amount) (RareCircle.sol#228)
- _balances[recipient] = _balances[recipient].add(tTransferAmount) (RareCircle.sol#229)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (RareCircle.sol#232)
Apply the check-effects-interactions pattern.
Additional information: link
RareCircle.allowance(address,address).owner (RareCircle.sol#84) shadows:
- Ownable.owner() (Ownable.sol#18-20) (function)
RareCircle._approve(address,address,uint256).owner (RareCircle.sol#156) shadows:
- Ownable.owner() (Ownable.sol#18-20) (function)
Rename the local variables that shadow another component.
Additional information: link
RareCircle.setFees(uint256) (RareCircle.sol#122-126) should emit an event for:
- _LpFee = LpFee (RareCircle.sol#125)
RareCircle.setNumTokensToSwap(uint256) (RareCircle.sol#128-131) should emit an event for:
- numTokensToSwap = amount (RareCircle.sol#130)
Emit an event for critical parameter changes.
Additional information: link
RareCircle.swapTokensForEth(uint256) (RareCircle.sol#200-214) has external calls inside a loop: path[1] = pancakeswapV2Router.WETH() (RareCircle.sol#204)
RareCircle.swapTokensForEth(uint256) (RareCircle.sol#200-214) has external calls inside a loop: pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
RareCircle.swapAndCharge() (RareCircle.sol#193-199) has external calls inside a loop: address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
Favor pull over push strategy for external calls.
Additional information: link
Reentrancy in RareCircle._transfer(address,address,uint256) (RareCircle.sol#164-191):
External calls:
- swapAndCharge() (RareCircle.sol#179)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
External calls sending eth:
- swapAndCharge() (RareCircle.sol#179)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _previousLpFee = _LpFee (RareCircle.sol#144)
Reentrancy in RareCircle.constructor() (RareCircle.sol#39-53):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (RareCircle.sol#42-43)
State variables written after the call(s):
- _balances[_msgSender()] = _tTotal (RareCircle.sol#51)
- _isExcludedFromFee[_msgSender()] = true (RareCircle.sol#49)
- _isExcludedFromFee[address(this)] = true (RareCircle.sol#50)
- pancakeswapV2Router = _pancakeswapV2Router (RareCircle.sol#46)
Reentrancy in RareCircle.transferFrom(address,address,uint256) (RareCircle.sol#93-97):
External calls:
- _transfer(sender,recipient,amount) (RareCircle.sol#94)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
External calls sending eth:
- _transfer(sender,recipient,amount) (RareCircle.sol#94)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (RareCircle.sol#95)
- _allowances[owner][spender] = amount (RareCircle.sol#160)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in RareCircle._transfer(address,address,uint256) (RareCircle.sol#164-191):
External calls:
- swapAndCharge() (RareCircle.sol#179)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
External calls sending eth:
- swapAndCharge() (RareCircle.sol#179)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (RareCircle.sol#233)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- Transfer(sender,recipient,tTransferAmount) (RareCircle.sol#235)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
Reentrancy in RareCircle.constructor() (RareCircle.sol#39-53):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (RareCircle.sol#42-43)
Event emitted after the call(s):
- Transfer(address(0),owner(),_tTotal) (RareCircle.sol#52)
Reentrancy in RareCircle.transferFrom(address,address,uint256) (RareCircle.sol#93-97):
External calls:
- _transfer(sender,recipient,amount) (RareCircle.sol#94)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (RareCircle.sol#207-213)
External calls sending eth:
- _transfer(sender,recipient,amount) (RareCircle.sol#94)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
Event emitted after the call(s):
- Approval(owner,spender,amount) (RareCircle.sol#161)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (RareCircle.sol#95)
Apply the check-effects-interactions pattern.
Additional information: link
Ownable.unlock() (Ownable.sol#49-54) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 0 days) (Ownable.sol#51)
Avoid relying on block.timestamp.
Additional information: link
RareCircle.lockTheSwap() (RareCircle.sol#33-37) has costly operations inside a loop:
- inSwap = true (RareCircle.sol#34)
RareCircle.lockTheSwap() (RareCircle.sol#33-37) has costly operations inside a loop:
- inSwap = false (RareCircle.sol#36)
RareCircle.removeAllFee() (RareCircle.sol#142-146) has costly operations inside a loop:
- _previousLpFee = _LpFee (RareCircle.sol#144)
RareCircle.removeAllFee() (RareCircle.sol#142-146) has costly operations inside a loop:
- _LpFee = 0 (RareCircle.sol#145)
RareCircle.restoreAllFee() (RareCircle.sol#148-150) has costly operations inside a loop:
- _LpFee = _previousLpFee (RareCircle.sol#149)
Use a local variable to hold the loop computation result.
Additional information: link
Context._msgData() (Context.sol#18-21) is never used and should be removed
SafeMath.div(uint256,uint256,string) (SafeMath.sol#189-194) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#149-151) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#211-216) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (SafeMath.sol#20-26) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (SafeMath.sol#62-67) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (SafeMath.sol#74-79) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (SafeMath.sol#45-55) is never used and should be removed
SafeMath.trySub(uint256,uint256) (SafeMath.sol#33-38) is never used and should be removed
Remove unused functions.
Additional information: link
RareCircle._previousLpFee (RareCircle.sol#26) is set pre-construction with a non-constant function or state variable:
- _LpFee
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
Pragma version^0.8.0 (Context.sol#2) allows old versions
Pragma version^0.8.0 (IBEP20.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Factory.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Router01.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Router02.sol#3) allows old versions
Pragma version^0.8.0 (Ownable.sol#2) allows old versions
Pragma version^0.8.0 (RareCircle.sol#3) allows old versions
Pragma version^0.8.0 (SafeMath.sol#2) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.
Additional information: link
Function IPancakeswapV2Router01.WETH() (IPancakeswapV2Router01.sol#7) is not in mixedCase
Parameter RareCircle.setFees(uint256).LpFee (RareCircle.sol#122) is not in mixedCase
Variable RareCircle._isBlacklisted (RareCircle.sol#18) is not in mixedCase
Variable RareCircle._LpFee (RareCircle.sol#25) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (Context.sol#19)" inContext (Context.sol#13-23)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in RareCircle._transfer(address,address,uint256) (RareCircle.sol#164-191):
External calls:
- swapAndCharge() (RareCircle.sol#179)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _LpFee = _previousLpFee (RareCircle.sol#149)
- _LpFee = 0 (RareCircle.sol#145)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _balances[sender] = _balances[sender].sub(amount) (RareCircle.sol#228)
- _balances[recipient] = _balances[recipient].add(tTransferAmount) (RareCircle.sol#229)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (RareCircle.sol#232)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- _previousLpFee = _LpFee (RareCircle.sol#144)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (RareCircle.sol#233)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
- Transfer(sender,recipient,tTransferAmount) (RareCircle.sol#235)
- _tokenTransfer(from,to,amount,takeFee) (RareCircle.sol#190)
Reentrancy in RareCircle.transferFrom(address,address,uint256) (RareCircle.sol#93-97):
External calls:
- _transfer(sender,recipient,amount) (RareCircle.sol#94)
- address(marketingAddress).transfer(bnbBalance.mul(_LpFee).div(totalFee)) (RareCircle.sol#198)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (RareCircle.sol#95)
- _allowances[owner][spender] = amount (RareCircle.sol#160)
Event emitted after the call(s):
- Approval(owner,spender,amount) (RareCircle.sol#161)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (RareCircle.sol#95)
Apply the check-effects-interactions pattern.
Additional information: link
Variable IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IPancakeswapV2Router01.sol#12) is too similar to IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IPancakeswapV2Router01.sol#13)
Prevent variables from having similar names.
Additional information: link
RareCircle.slitherConstructorVariables() (RareCircle.sol#12-240) uses literals with too many digits:
- _tTotal = 100000000 * 10 ** 18 (RareCircle.sol#19)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
RareCircle.MAX (RareCircle.sol#20) is never used in RareCircle (RareCircle.sol#12-240)
Remove unused state variables.
Additional information: link
RareCircle._decimals (RareCircle.sol#24) should be constant
RareCircle._name (RareCircle.sol#22) should be constant
RareCircle._symbol (RareCircle.sol#23) should be constant
RareCircle._tTotal (RareCircle.sol#19) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Ownable.sol#27-30)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#32-36)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (Ownable.sol#38-40)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (Ownable.sol#42-47)
unlock() should be declared external:
- Ownable.unlock() (Ownable.sol#49-54)
transfer(address,uint256) should be declared external:
- RareCircle.transfer(address,uint256) (RareCircle.sol#79-82)
allowance(address,address) should be declared external:
- RareCircle.allowance(address,address) (RareCircle.sol#84-86)
approve(address,uint256) should be declared external:
- RareCircle.approve(address,uint256) (RareCircle.sol#88-91)
transferFrom(address,address,uint256) should be declared external:
- RareCircle.transferFrom(address,address,uint256) (RareCircle.sol#93-97)
increaseAllowance(address,uint256) should be declared external:
- RareCircle.increaseAllowance(address,uint256) (RareCircle.sol#99-102)
decreaseAllowance(address,uint256) should be declared external:
- RareCircle.decreaseAllowance(address,uint256) (RareCircle.sol#104-107)
sendAirdrop(address[],uint256) should be declared external:
- RareCircle.sendAirdrop(address[],uint256) (RareCircle.sol#218-222)
Use the external attribute for functions never called from the contract.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token/project description on the website or on BscScan, CoinMarketCap
Unable to find token contract audit
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
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
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
Young tokens have high risks of scam / price dump / death
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Young tokens have high risks of price dump / death
Telegram account link seems to be invalid
Unable to find Youtube account
Unable to find Discord account