Missing `receive()` function in `Nexus.sol` makes it impossible for the smart account owner to directly receive Ether.
Vulnerability Details
The receive() function would allow a smart account owner to accept plain Ether transfers. Meaning that when someone sends funds directly to the smart account's address the receive() function is invoked. However, Nexus.sol does not implement the receive() function, nor a fallback() function.
Impact
The absence of the receive() function in Nexus.sol would prevent the smart account from accepting plain Ether transfers directly to its address, leading to failed transactions and potentially causing disruptions in services that rely on direct Ether transfers.
Tools Used
Manual review, vscode
Recommended Mitigation
Consider adding a receive() function to Nexus.sol contract:
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