DECENT [DECENT Database] Token

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

DECENT.swapBack() (#773-830) sends eth to arbitrary user
Dangerous calls:
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in DECENT._transferFrom(address,address,uint256) (#645-737):
External calls:
- swapBack() (#679)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#791-797)
- distributor.deposit{value: amountBNBReflection}() (#815)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
External calls sending eth:
- swapBack() (#679)
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#682-685)
- amountReceived = takeFee(sender,amount) (#694)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#759)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#722)
Apply the check-effects-interactions pattern.

Additional information: link

Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

DECENT.swapBack() (#773-830) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendDistributor.setDistributionCriteria(uint256,uint256) (#329-335) should emit an event for:
- minPeriod = _minPeriod (#333)
- minDistribution = _minDistribution (#334)
DividendDistributor.deposit() (#359-365) should emit an event for:
- dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares)) (#362-364)
DECENT.setFees(uint256,uint256,uint256,uint256,uint256) (#873-890) should emit an event for:
- liquidityFee = _liquidityFee (#880)
- buybackFee = _buybackFee (#881)
- reflectionFee = _reflectionFee (#882)
- marketingFee = _marketingFee (#883)
- totalFee = _liquidityFee.add(_buybackFee).add(_reflectionFee).add(_marketingFee) (#884-886)
- feeDenominator = _feeDenominator (#887)
DECENT.setSwapBackSettings(bool,uint256) (#902-908) should emit an event for:
- swapThreshold = _amount (#907)
DECENT.setTargetLiquidity(uint256,uint256) (#910-916) should emit an event for:
- targetLiquidity = _target (#914)
- targetLiquidityDenominator = _denominator (#915)
Emit an event for critical parameter changes.

Additional information: link

Ownable.transferOwnership(address).adr (#177) lacks a zero-check on :
- owner = adr (#178)
DECENT.constructor(address,address,address)._market (#548) lacks a zero-check on :
- marketingFeeReceiver = _market (#565)
DECENT.constructor(address,address,address)._buyBack (#549) lacks a zero-check on :
- buybackFeeReceiver = _buyBack (#566)
DECENT.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#893) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#897)
DECENT.setFeeReceivers(address,address,address)._marketingFeeReceiver (#894) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#898)
DECENT.setFeeReceivers(address,address,address)._buybackFeeReceiver (#895) lacks a zero-check on :
- buybackFeeReceiver = _buybackFeeReceiver (#899)
Check that the address is not zero.

Additional information: link

DividendDistributor.distributeDividend(address) (#405-422) has external calls inside a loop: address(shareholder).transfer(amount) (#413)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in DECENT._transferFrom(address,address,uint256) (#645-737):
External calls:
- swapBack() (#679)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#791-797)
- distributor.deposit{value: amountBNBReflection}() (#815)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
External calls sending eth:
- swapBack() (#679)
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
State variables written after the call(s):
- lastBuyTime[recipient] = block.timestamp (#718)
- lastSellAmount[sender] = 0 (#712)
- lastSellAmount[sender] = lastSellAmount[sender].add(amount) (#714)
- lastSellTime[sender] = block.timestamp (#716)
Reentrancy in DECENT.constructor(address,address,address) (#546-573):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#553)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = _totalSupply (#554)
- approve(_router,_totalSupply) (#568)
- _allowances[msg.sender][spender] = amount (#615)
- approve(address(pair),_totalSupply) (#569)
- _allowances[msg.sender][spender] = amount (#615)
- _balances[msg.sender] = _totalSupply (#570)
- autoLiquidityReceiver = msg.sender (#564)
- buybackFeeReceiver = _buyBack (#566)
- distributor = new DividendDistributor(_router) (#555)
- distributorAddress = address(distributor) (#556)
- isDividendExempt[pair] = true (#560)
- isDividendExempt[address(this)] = true (#561)
- isDividendExempt[DEAD] = true (#562)
- isFeeExempt[msg.sender] = true (#558)
- isTxLimitExempt[msg.sender] = true (#559)
- marketingFeeReceiver = _market (#565)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DECENT._transferFrom(address,address,uint256) (#645-737):
External calls:
- swapBack() (#679)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#791-797)
- distributor.deposit{value: amountBNBReflection}() (#815)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
External calls sending eth:
- swapBack() (#679)
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#760)
- amountReceived = takeFee(sender,amount) (#694)
Reentrancy in DECENT._transferFrom(address,address,uint256) (#645-737):
External calls:
- swapBack() (#679)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#791-797)
- distributor.deposit{value: amountBNBReflection}() (#815)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
- distributor.setShare(sender,_balances[sender]) (#725)
- distributor.setShare(recipient,_balances[recipient]) (#728-730)
- distributor.process(distributorGas) (#733)
External calls sending eth:
- swapBack() (#679)
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Event emitted after the call(s):
- Transfer(sender,recipient,amountReceived) (#735)
Reentrancy in DECENT.constructor(address,address,address) (#546-573):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#553)
Event emitted after the call(s):
- Approval(msg.sender,spender,amount) (#616)
- approve(address(pair),_totalSupply) (#569)
- Approval(msg.sender,spender,amount) (#616)
- approve(_router,_totalSupply) (#568)
- Transfer(address(0),msg.sender,_totalSupply) (#572)
Reentrancy in DECENT.swapBack() (#773-830):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#791-797)
- distributor.deposit{value: amountBNBReflection}() (#815)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#828)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.shouldDistribute(address) (#395-403) uses timestamp for comparisons
Dangerous comparisons:
- shareholderClaims[shareholder] + minPeriod < block.timestamp && getUnpaidEarnings(shareholder) > minDistribution (#400-402)
DECENT._transferFrom(address,address,uint256) (#645-737) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp < launchedAtTimestamp + antiSnipingTime && sender != address(router) (#662-663)
- block.timestamp < lastSellTime[sender].add(maxSellDuration) (#699-700)
Avoid relying on block.timestamp.

Additional information: link

DividendDistributor.process(uint256) (#367-393) has costly operations inside a loop:
- currentIndex = 0 (#381)
DividendDistributor.distributeDividend(address) (#405-422) has costly operations inside a loop:
- totalDistributed = totalDistributed.add(amount) (#412)
DividendDistributor.process(uint256) (#367-393) has costly operations inside a loop:
- currentIndex ++ (#390)
Use a local variable to hold the loop computation result.

Additional information: link

DECENT.launched() (#832-834) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#100-109) is never used and should be removed
SafeMath.mod(uint256,uint256) (#85-87) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#111-120) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#8-18) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#47-56) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#58-67) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#31-45) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#20-29) is never used and should be removed
Remove unused functions.

Additional information: link

DECENT.maxTxAmount (#493) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(400)
DECENT.swapThreshold (#538) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 2000
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^0.8.9 (#2) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.9 is not recommended for deployment
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 Irouter.WETH() (#194) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minPeriod (#330) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minDistribution (#331) is not in mixedCase
Parameter DividendDistributor.claimDividend(address)._user (#424) is not in mixedCase
Variable DividendDistributor._token (#283) is not in mixedCase
Variable DividendDistributor.WBNB (#291) is not in mixedCase
Parameter DECENT.setFees(uint256,uint256,uint256,uint256,uint256)._liquidityFee (#874) is not in mixedCase
Parameter DECENT.setFees(uint256,uint256,uint256,uint256,uint256)._buybackFee (#875) is not in mixedCase
Parameter DECENT.setFees(uint256,uint256,uint256,uint256,uint256)._reflectionFee (#876) is not in mixedCase
Parameter DECENT.setFees(uint256,uint256,uint256,uint256,uint256)._marketingFee (#877) is not in mixedCase
Parameter DECENT.setFees(uint256,uint256,uint256,uint256,uint256)._feeDenominator (#878) is not in mixedCase
Parameter DECENT.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#893) is not in mixedCase
Parameter DECENT.setFeeReceivers(address,address,address)._marketingFeeReceiver (#894) is not in mixedCase
Parameter DECENT.setFeeReceivers(address,address,address)._buybackFeeReceiver (#895) is not in mixedCase
Parameter DECENT.setSwapBackSettings(bool,uint256)._enabled (#902) is not in mixedCase
Parameter DECENT.setSwapBackSettings(bool,uint256)._amount (#902) is not in mixedCase
Parameter DECENT.setTargetLiquidity(uint256,uint256)._target (#910) is not in mixedCase
Parameter DECENT.setTargetLiquidity(uint256,uint256)._denominator (#910) is not in mixedCase
Parameter DECENT.setDistributionCriteria(uint256,uint256)._minPeriod (#919) is not in mixedCase
Parameter DECENT.setDistributionCriteria(uint256,uint256)._minDistribution (#920) is not in mixedCase
Parameter DECENT.addSniperInList(address)._account (#974) is not in mixedCase
Parameter DECENT.removeSniperFromList(address)._account (#980) is not in mixedCase
Parameter DECENT.setSellLimits(bool,uint256,uint256)._status (#986) is not in mixedCase
Parameter DECENT.setSellLimits(bool,uint256,uint256)._duration (#987) is not in mixedCase
Parameter DECENT.setSellLimits(bool,uint256,uint256)._divider (#988) is not in mixedCase
Variable DECENT.WBNB (#485) is not in mixedCase
Variable DECENT.DEAD (#486) is not in mixedCase
Constant DECENT._name (#488) is not in UPPER_CASE_WITH_UNDERSCORES
Constant DECENT._symbol (#489) is not in UPPER_CASE_WITH_UNDERSCORES
Constant DECENT._decimals (#490) is not in UPPER_CASE_WITH_UNDERSCORES
Variable DECENT._totalSupply (#492) is not in mixedCase
Variable DECENT._balances (#495) is not in mixedCase
Variable DECENT._allowances (#496) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in DECENT._transferFrom(address,address,uint256) (#645-737):
External calls:
- swapBack() (#679)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
External calls sending eth:
- swapBack() (#679)
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#682-685)
- amountReceived = takeFee(sender,amount) (#694)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#759)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#722)
- lastBuyTime[recipient] = block.timestamp (#718)
- lastSellAmount[sender] = 0 (#712)
- lastSellAmount[sender] = lastSellAmount[sender].add(amount) (#714)
- lastSellTime[sender] = block.timestamp (#716)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#760)
- amountReceived = takeFee(sender,amount) (#694)
- Transfer(sender,recipient,amountReceived) (#735)
Reentrancy in DividendDistributor.distributeDividend(address) (#405-422):
External calls:
- address(shareholder).transfer(amount) (#413)
State variables written after the call(s):
- shareholderClaims[shareholder] = block.timestamp (#414)
- shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount) (#415-417)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#418-420)
Reentrancy in DividendDistributor.process(uint256) (#367-393):
External calls:
- distributeDividend(shareholders[currentIndex]) (#385)
- address(shareholder).transfer(amount) (#413)
State variables written after the call(s):
- currentIndex ++ (#390)
Reentrancy in DividendDistributor.setShare(address,uint256) (#337-357):
External calls:
- distributeDividend(shareholder) (#343)
- address(shareholder).transfer(amount) (#413)
State variables written after the call(s):
- addShareholder(shareholder) (#347)
- shareholderIndexes[shareholder] = shareholders.length (#467)
- removeShareholder(shareholder) (#349)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#475-477)
- addShareholder(shareholder) (#347)
- shareholders.push(shareholder) (#468)
- removeShareholder(shareholder) (#349)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#472-474)
- shareholders.pop() (#478)
- shares[shareholder].amount = amount (#353)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#354-356)
- totalShares = totalShares.sub(shares[shareholder].amount).add(amount) (#352)
Reentrancy in DECENT.swapBack() (#773-830):
External calls:
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#815)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#816)
- address(buybackFeeReceiver).transfer(amountBNBBuyback) (#817)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#820-827)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#828)
Apply the check-effects-interactions pattern.

Additional information: link

Variable Irouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#199) is too similar to Irouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#200)
Prevent variables from having similar names.

Additional information: link

DECENT.slitherConstructorVariables() (#482-999) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#486)
DECENT.slitherConstructorVariables() (#482-999) uses literals with too many digits:
- distributorGas = 500000 (#532)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DECENT.DEAD (#486) should be constant
DECENT._totalSupply (#492) should be constant
DECENT.antiSnipingTime (#526) should be constant
DividendDistributor.dividendsPerShareAccuracyFactor (#304) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#177-180)
claimDividend(address) should be declared external:
- DividendDistributor.claimDividend(address) (#424-426)
getPaidEarnings(address) should be declared external:
- DividendDistributor.getPaidEarnings(address) (#428-434)
launch() should be declared external:
- DECENT.launch() (#836-842)
getPaidDividend(address) should be declared external:
- DECENT.getPaidDividend(address) (#938-944)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap volume is low.

Number of Binance Smart Chain (BSC) token holders is low.

Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find PancakeSwap trading pair to compute liquidity.

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

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

Additional information: link

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 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 relatively low CoinMarketCap rank