Submission Details
Severity:
NFT can mint at the wrong price.
Summary
The cost of the gift is defined as 2e18, but it can be bought for 1e18.
Vulnerability Details
PURCHASED_PRESENT_COST = 2e18; is defined as a constant, specifying that this is the cost to buy the gift. However, this is not used in buyPresent, and with _burn(from, 1e18), a present can be purchased for 1e18
Impact
Gifts are bought at prices not anticipated by Santa.
Tools Used
Manual
Recommendations
Allow _burn to be set to any amount and pass PURCHASED_PRESENT_COST as an argument
Rewards breakdown
nSLOC
116This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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