Contract Existence Check - Low Level Calls https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-05-cally.md#h-03-wp-h0-fake-balances-can-be-created-for-not-yet-existing-erc20-tokens-which-allows-attackers-to-set-traps-to-steal-funds-from-future-users https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-axelar.md#m-01-low-level-call-returns-true-if-the-address-doesnt-exist https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-06-pooltogether.md#m-05-actual-yield-source-check-on-address-will-succeed-for-non-existent-contract https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-03-lifinance.md#m-11-failed-transfer-with-low-level-call-wont-revert https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-trader-joe.md#m-05-failed-transfer-with-low-level-call-could-be-overlooked Set Fee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-backed.md#m-06-might-not-get-desired-min-loan-amount-if-_originationfeerate-changes https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-02-tribe-turbo.md#m-03-slurp-can-be-frontrun-with-fee-increase https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-02-redacted-cartel.md#m-01-manipulations-of-setfee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-02-concur.md#m-02-unconstrained-fee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-trader-joe.md#m-01-improper-upper-bound-definition-on-the-fee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-sandclock.md#m-05-add-a-timelock-to-basestrategysetperffeepct https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-12-nftx.md#m-05-pool-manager-can-frontrun-fees-to-100-and-use-it-to-steal-the-value-from-users https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-12-defiprotocol.md#m-01-missing-cap-on-licensefee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-11-overlay.md#m-09-improper-upper-bound-definition-on-the-fee https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-06-tracer.md#m-07-malicious-owner-can-arbitrarily-change-fee-to-any--value https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-05-nftx.md#m-06-manager-can-grief-with-fees https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-05-cally.md#m-01-owner-can-modify-the-feerate-on-existing-vaults-and-steal-the-strike-value-on-exercise Msg.value Validation https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-03-lifinance.md#m-07-erc20-bridging-functions-do-not-revert-on-non-zero-msgvalue 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Tokens - Fee on Transfer Tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-08-realitycards-round-2.md#m-03-deposits-dont-work-with-fee-on-transfer-tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-05-cally.md#m-08-vault-is-not-compatible-with-fee-tokens-and-vaults-with-such-tokens-could-be-exploited https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-axelar.md#m-04-unsupported-fee-on-transfer-tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-05-88mph.md#m-01-incompatability-with-deflationary--fee-on-transfer-tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-06-realitycards.md#m-15-deposits-dont-work-with-fee-on-transfer-tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2021-06-tracer.md#m-03-deflationary-tokens-are-not-supported 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https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-pooltogether.md#m-02-_depositamount-requires-to-be-updated-to-contract-balance-increase https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-behodler.md#m-06-consistently-check-account-balance-before-and-after-transfers-for-fee-on-transfer-discrepencies https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-insure.md#m-05-vaultsol-tokens-with-fee-on-transfer-are-not-supported https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-openleverage.md#m-04-openlevv1closetrade-with-v3-dex-doesnt-correctly-accounts-fee-on-transfer-tokens-for-repayments https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-openleverage.md#m-01-univ2classdexsoluniclasssell-tokens-with-fee-on-transfer-are-not-fully-supported 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https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-02-tribe-turbo.md#m-04-erc4626-does-not-work-with-fee-on-transfer-tokens https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-backed.md#m-02-protocol-doesnt-handle-fee-on-transfer-tokens ERC721 safeTransfer https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-05-cally.md#m-09-use-safetransferfrom-instead-of-transferfrom-for-erc721-transfers https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-01-sandclock.md#m-09-no-use-of-safemint-as-safe-guard-for-users- https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-04-backed.md#m-07-mintborrowticketto-can-be-a-contract-with-no-onerc721received-method-which-may-cause-the-borrowticket-nft-to-be-frozen-and-put-users-funds-at-risk https://github.com/code-423n4/code423n4.com/blob/main/_data/reports/2022-05-cally.md#m-09-use-safetransferfrom-instead-of-transferfrom-for-erc721-transfers 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