Submission Details
Severity:
s_ownerToCatsTokenId
Summary
s_ownerToCatsTokenId mapping is used for mapping the NFT owners to NFT TokenIds. It is updated in the mintCatToNewOwner() function.
Vulnerability Details
But it's not updated in safeTransferFrom() function. The transferred tokenId should be removed from this mapping.
Impact
Although require statements in bridgeNftToAnotherChain and safeTransferFrom functions prevents the NFT to be transferred or minted more than once, the impact is related to the mapping itself and catInfo.idx
Tools Used
foundry
manual review
Recommendations
It's recommended to remove the correct tokenId from s_ownerToCatsTokenId
Updates
Lead Judging Commences
inallhonesty over 1 year ago
Submission Judgement Published Assigned finding tags:
Improper token ownership update in `_updateOwnershipInfo`
Rewards breakdown
nSLOC
235This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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