CVE-2019-20809

The price oracle in PriceOracle.sol in Compound Finance Compound Price Oracle 1.0 through 2.0 allows a price poster to set an invalid asset price via the setPrice function, and consequently violate the intended limits on price swings...

TWAP Oracle inflexible _updatePeriod

Handle elprofesor Vulnerability details Impact Update periods in TWAP oracles reflect risk of an asset. Updating more frequently accurately prices an asset but increases capabilities of manipulation which should be harder with more stable assets, whereas longer update periods prevent manipulation...