APPLE [AppleSwap] Token

APPLE.addLiquidity(uint256,uint256) (AppleSwap.sol#526-541) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (AppleSwap.sol#532-539)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in APPLE._transfer(address,address,uint256) (AppleSwap.sol#315-448):
External calls:
- swapAndSendToMarketingWallet(marketingTokens_scope_2) (AppleSwap.sol#402)
- IERC20(USDT).transfer(_marketingWalletAddress,newBalance) (AppleSwap.sol#456)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (AppleSwap.sol#515-521)
- swapAndLiquify(swapTokens_scope_3) (AppleSwap.sol#405)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (AppleSwap.sol#532-539)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (AppleSwap.sol#495-501)
- swapAndSendDividends(sellTokens_scope_4) (AppleSwap.sol#408)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (AppleSwap.sol#546)
- dividendTracker.distributeUSDTDividends(dividends) (AppleSwap.sol#549)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (AppleSwap.sol#515-521)
External calls sending eth:
- swapAndLiquify(swapTokens_scope_3) (AppleSwap.sol#405)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (AppleSwap.sol#532-539)
State variables written after the call(s):
- super._transfer(from,address(this),fees_scope_6) (AppleSwap.sol#428)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#230)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#231)
- super._transfer(from,to,amount) (AppleSwap.sol#431)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#230)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#231)
- swapping = false (AppleSwap.sol#410)
Apply the check-effects-interactions pattern.

Additional information: link

APPLE.swapAndSendToMarketingWallet(uint256) (AppleSwap.sol#450-457) ignores return value by IERC20(USDT).transfer(_marketingWalletAddress,newBalance) (AppleSwap.sol#456)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

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

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.

Combination 2: Unchecked transfer + 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.

Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Reentrancy in APPLE.updateDividendTracker(address) (AppleSwap.sol#137-152):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (AppleSwap.sol#144)
- newDividendTracker.excludeFromDividends(address(this)) (AppleSwap.sol#145)
- newDividendTracker.excludeFromDividends(owner()) (AppleSwap.sol#146)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (AppleSwap.sol#147)
State variables written after the call(s):
- dividendTracker = newDividendTracker (AppleSwap.sol#151)
Apply the check-effects-interactions pattern.

Additional information: link

APPLE._transfer(address,address,uint256).lastProcessedIndex (AppleSwap.sol#381) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

APPLE.addLiquidity(uint256,uint256) (AppleSwap.sol#526-541) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (AppleSwap.sol#532-539)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendPayingToken.accumulativeDividendOf(address)._owner (DividendPayingToken.sol#131) shadows:
- Ownable._owner (Ownable.sol#17) (state variable)
Rename the local variables that shadow another component.

Additional information: link

APPLE.setMarketingSellFee(uint256) (AppleSwap.sol#209-212) should emit an event for:
- marketingSellFee = value (AppleSwap.sol#210)
- totalSellFees = USDTSELLRewardsFee.add(liquiditySellFee).add(marketingSellFee) (AppleSwap.sol#211)
Emit an event for critical parameter changes.

Additional information: link

APPLE.setMarketingWallet(address).wallet (AppleSwap.sol#178) lacks a zero-check on :
- _marketingWalletAddress = wallet (AppleSwap.sol#179)
Check that the address is not zero.

Additional information: link

Variable 'APPLE._transfer(address,address,uint256).claims_scope_9 (AppleSwap.sol#439)' in APPLE._transfer(address,address,uint256) (AppleSwap.sol#315-448) potentially used before declaration: ProcessedDividendTracker(iterations_scope_8,claims_scope_9,lastProcessedIndex_scope_10,true,gas_scope_7,tx.origin) (AppleSwap.sol#440)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

Reentrancy in APPLE.updateUniswapV2Router(address) (AppleSwap.sol#154-161):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (AppleSwap.sol#158-159)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (AppleSwap.sol#160)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in APPLE.updateDividendTracker(address) (AppleSwap.sol#137-152):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (AppleSwap.sol#144)
- newDividendTracker.excludeFromDividends(address(this)) (AppleSwap.sol#145)
- newDividendTracker.excludeFromDividends(owner()) (AppleSwap.sol#146)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (AppleSwap.sol#147)
Event emitted after the call(s):
- UpdateDividendTracker(newAddress,address(dividendTracker)) (AppleSwap.sol#149)
Apply the check-effects-interactions pattern.

Additional information: link

APPLEDividendTracker.canAutoClaim(uint256) (AppleSwap.sol#680-686) uses timestamp for comparisons
Dangerous comparisons:
- lastClaimTime > block.timestamp (AppleSwap.sol#681)
- block.timestamp.sub(lastClaimTime) >= claimWait (AppleSwap.sol#685)
Avoid relying on block.timestamp.

Additional information: link

SafeMathInt.mul(int256,int256) (SafeMathInt.sol#50-57) is never used and should be removed
Remove unused functions.

Additional information: link

APPLE.totalSellFees (AppleSwap.sol#48) is set pre-construction with a non-constant function or state variable:
- USDTSELLRewardsFee.add(marketingSellFee).add(liquiditySellFee)
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^0.6.2 (SafeMathUint.sol#12) 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 IUniswapV2Router01.WETH() (IUniswapV2Router.sol#16) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (Context.sol#30)" inContext (Context.sol#24-33)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IUniswapV2Router.sol#21) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IUniswapV2Router.sol#22)
Prevent variables from having similar names.

Additional information: link

APPLEDividendTracker.getAccountAtIndex(uint256) (AppleSwap.sol#661-678) uses literals with too many digits:
- (0x0000000000000000000000000000000000000000,- 1,- 1,0,0,0,0,0) (AppleSwap.sol#672)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (SafeMathInt.sol#45) is never used in SafeMathInt (SafeMathInt.sol#43-101)
Remove unused state variables.

Additional information: link

DividendPayingToken.USDT (DividendPayingToken.sol#33) 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) (Ownable.sol#61-65)
Use the external attribute for functions never called from the contract.

Additional information: link

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

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

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 volume.

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

Unable to crawl data from the website

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

Additional information: link

Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

Additional information: link

Unable to find token contract audit

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 Telegram link on the website

Unable to find Twitter link on the website

Unable to find token on CoinHunt

Additional information: link

Young tokens have high risks of price dump / death

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

Token has no active CoinMarketCap listing / rank

Token has relatively low CoinGecko rank