The claimCut function must ensure that only valid players can claim their rewards and that each player can claim only once. Without these checks, a non-player could attempt to claim tokens, or a legitimate player could claim multiple times, breaking the intended reward distribution logic.

If exploited, an unauthorized address could receive rewards, or a player could receive multiple payouts. This leads to unfair reward distribution, potential financial loss, and undermines the integrity of the contest.

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function test_PoC_ClaimCutPlayerValidation() public {

address player = address(0x1);

Pot pot = new Pot([player], [1 ether], token, 1 ether);

​

// First valid claim

vm.prank(player);

pot.claimCut();

​

// Attempt repeated claim

vm.prank(player);

vm.expectRevert(); // should revert due to hasClaimed mapping

pot.claimCut();

​

// Attempt claim by non-player

address attacker = address(0x2);

vm.prank(attacker);

vm.expectRevert(); // should revert due to isPlayer mapping

pot.claimCut();

​

}

Ensure that claimCut validates that the caller is a registered player and has not already claimed their reward. By maintaining these checks, each player can claim exactly once, unauthorized addresses are prevented from claiming, and reward distribution remains fair and predictable.

function claimCut() external {

token.transfer(msg.sender, cuts[msg.sender]);

}

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