Summary

The setPrediction function is declared as public, allowing any external actor to call it. However, the function should only be callable by the specific player it's intended for, indicating that it should have more restrictive visibility.

Vulnerability Details

The function signature is as follows:

The public visibility allows any external account or contract to call this function, potentially setting predictions for any player. This is a serious access control issue, as it allows unauthorized manipulation of predictions.

Impact

anyone can call this function directly whitout benn approved or pay the fees

Unauthorized Predictions: Any user can set predictions for any other user, completely bypassing any intended access controls.

Tools Used

Manual Code Review

Recommendations

Change the function visibility to internal:

This ensures that only the contract itself or derived contracts can call this function.