Beatland Festival

AI First Flight #4
Beginner FriendlyFoundrySolidityNFT
EXP
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Submission Details
Severity: low
Valid

The createMemorabiliaCollection function sets the isActive flag only at creation time, with no mechanism to modify it afterward.

Root + Impact

Root Cause

The createMemorabiliaCollection function sets the isActive flag only at creation time, with no mechanism to modify it afterward.

// @> Activation state fixed at creation
collections[collectionId] = MemorabiliaCollection({
name: name,
baseUri: baseUri,
priceInBeat: priceInBeat,
maxSupply: maxSupply,
currentItemId: 1,
isActive: activateNow
});

There is no function to later activate or deactivate a collection once deployed.


Impact

  • Permanent inaccessibility of collections
    If activateNow is set to false, the collection can never be activated

  • Operational inflexibility
    Organizer cannot:

    • Delay launch and activate later

    • Pause a collection

    • Reopen a collection

  • Potential loss of revenue
    Collections created in an inactive state become unusable


Description

  • Under normal behavior, NFT collections should support lifecycle management, allowing organizers to activate, deactivate, or pause collections after creation.

  • In the current implementation, the isActive flag is set only once during creation and cannot be modified. This creates a rigid system where collections may become permanently unusable if initialized incorrectly.


Risk

Likelihood:

  • Occurs when a collection is created with activateNow = false

  • Occurs during staged launches or misconfiguration by the organizer


Impact:

  • Collections remain permanently inactive

  • Users cannot redeem memorabilia from affected collections


Recommended Mitigation

Add a function to manage activation state.

The organizer can change the active state of the collection as follows

+ function setCollectionActive(uint256 collectionId, bool active) external onlyOrganizer {
+ require(collections[collectionId].priceInBeat > 0, "Invalid collection");
+ collections[collectionId].isActive = active;
+ }
Updates

Lead Judging Commences

ai-first-flight-judge Lead Judge about 3 hours ago
Submission Judgement Published
Validated
Assigned finding tags:

[L-01] Inactive Collections — Indefinite BEAT Lock-up

# Inactive Collections — Indefinite BEAT Lock-up ## Description * Normal behaviour: Organizer creates memorabilia collections with `activateNow = true` so users can immediately redeem BEAT for NFTs. * Issue: Collections can be created with `activateNow = false` and there is **no mechanism** to activate them later, nor any timeout. Users may acquire BEAT expecting to redeem specific memorabilia, but the organizer can indefinitely prevent access. ```solidity function createMemorabiliaCollection(..., bool activateNow) external onlyOrganizer { // ... validation ... @> collections[collectionId] = MemorabiliaCollection({ // ... isActive: activateNow // Can be false forever }); } function redeemMemorabilia(uint256 collectionId) external { @> require(collection.isActive, "Collection not active"); // Permanent block // ... } ``` ## Risk **Likelihood**: * Organizer may create collections in advance but forget to activate. * Intentional strategy to create hype then indefinitely delay launch. **Impact**: * Users hold BEAT tokens anticipating memorabilia that never becomes available. * Economic utility of BEAT reduced if major collections remain locked. ## Proof of Concept ```solidity function test_CollectionNeverActivated() public { // Alice gets BEAT tokens vm.prank(alice); festivalPass.buyPass{value: 0.1 ether}(VIP_PASS); // gets 5 BEAT bonus // Organizer creates inactive collection vm.prank(organizer); uint256 collectionId = festivalPass.createMemorabiliaCollection( "Limited Edition", "ipfs://limited", 3e18, 100, false // NOT activated ); // Alice tries to redeem but can't vm.prank(alice); vm.expectRevert("Collection not active"); festivalPass.redeemMemorabilia(collectionId); // Time passes, organizer chooses not to activate vm.warp(block.timestamp + 365 days); // Alice still can't redeem - funds effectively locked vm.prank(alice); vm.expectRevert("Collection not active"); festivalPass.redeemMemorabilia(collectionId); assertEq(beatToken.balanceOf(alice), 5e18, "Alice holds 'useless' BEAT"); } ``` ## Recommended Mitigation ```diff + mapping(uint256 => bool) public collectionActivated; + function activateCollection(uint256 collectionId) external onlyOrganizer { + require(collections[collectionId].priceInBeat > 0, "Collection does not exist"); + collections[collectionId].isActive = true; + collectionActivated[collectionId] = true; + } // Or add automatic timeout: + uint256 constant ACTIVATION_DEADLINE = 30 days; + mapping(uint256 => uint256) public collectionCreatedAt; function createMemorabiliaCollection(...) external onlyOrganizer { // ... + collectionCreatedAt[collectionId] = block.timestamp; } function redeemMemorabilia(uint256 collectionId) external { MemorabiliaCollection storage collection = collections[collectionId]; + bool autoActive = block.timestamp >= collectionCreatedAt[collectionId] + ACTIVATION_DEADLINE; + require(collection.isActive || autoActive, "Collection not active"); // ... } ```

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