Next Earth Polygon Smart Contract Reentrancy Attack

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Next Earth

Next Earth is a Web3 platform aiming to revolutionize digital community engagement through a decentralized system built on NFT-based land ownership and smart contracts. It offers unique features like the Initial Map Offering and token distribution mechanisms that emphasize transparency and fairness. However, the platform recently suffered a $17,000 loss due to a re-entrancy attack on its smart contract, as reported by SlowMist. The project team has not publicly addressed the incident, leading to concern and disappointment among community members, despite the website remaining active.

About Next Earth

Next Earth is a Web3 platform focused on redefining digital community engagement through a decentralized ecosystem built around NFT-based land ownership and smart contracts. Next Earth blends utility, transparency, and gamification in a decentralized environment, positioning itself as a forward-thinking player in the digital land and Web3 business space.

At its core, the platform offers a smart contract-powered economic structure that allows businesses—both new and established—to access previously unavailable Web3 solutions. One of its standout features is the Initial Map Offering, which uses Universal Grid Technology to tokenize real or fictional surfaces, enabling users to own and interact with digital representations of land across various environments.

A key innovation lies in how tokens are distributed: all are pre-minted and directly injected into map tiles, meaning land buyers receive the tokens proportional to their purchases. This approach ensures a fair launch with no team-held tokens or reserve allocations, minimizing risks and offering full transparency. Moreover, Next Earth features a reallocation mechanism that redistributes value back to asset holders based on project performance, governed by a blockchain-based tier and analytics system that also serves community management functions.

Complementing the core platform is the Next Earth Mini App, which gamifies the user experience by allowing participants to earn rewards such as $NXTT through quests, referrals, and other activities. The app makes entry into the ecosystem easy and engaging, especially for newcomers. Additionally, the community is turning its attention to the $SOON token and its farming opportunities on the TON blockchain, where users can grow their portfolios through low-effort strategies. Guides and updates are shared through Next Earth’s blog, helping users maximize their rewards and stay prepared for future developments like Planet TON.

The Reality

The Next Earth smart contract was vulnerable to a re-entrancy attack.

What Happened

"[T]he NFT project Next Earth has suffered a reentrancy attack on Polygon."

Key Event Timeline - Next Earth Polygon Smart Contract Reentrancy Attack

Date	Event	Description
March 12th, 2025 5:47:00 AM MDT	Last Tweet By Next Earth	The last tweet is posted on Twitter/X by the Next Earth team. This announces a partnership "with NutNinja—your gateway to Web3 gaming".
April 7th, 2025 10:11:00 PM MDT	SlowMist Reports Suspicions	SlowMist reports that they believe they have detected suspicious activity related to the Next Earth NFT project.

Technical Details

A re-entrancy attack. Limited details.

Smart Contract Address: 0x2ca5281d1968635e60dbd44d653a0caa4ff84b82

Total Amount Lost

SlowMist: Amount of loss: $17,000

The total amount lost has been estimated at $17,000 USD.

Immediate Reactions

"According to the SlowMist MistEye security monitoring system, the NFT project Next Earth has suffered a reentrancy attack on Polygon."

Ultimate Outcome

There does not appear to have been any reaction from the project team. It is unclear whether they may have had a role in the activity.

Total Amount Recovered

There do not appear to have been any funds recovered in this case.

What funds were recovered? What funds were reimbursed for those affected users?

Ongoing Developments

The Next Earth website appears to be online. The Next Earth Twitter account appears to not be making any posts. There appears to be many community members who have expressed disappointment with the project.

Individual Prevention Policies

No specific policies for individual prevention have yet been identified in this case.

For the full list of how to protect your funds as an individual, check our Prevention Policies for Individuals guide.

Platform Prevention Policies

Policies for platforms to take to prevent this situation have not yet been selected in this case.

For the full list of how to protect your funds as a financial service, check our Prevention Policies for Platforms guide.

Regulatory Prevention Policies

No specific regulatory policies have yet been identified in this case.

For the full list of regulatory policies that can prevent loss, check our Prevention Policies for Regulators guide.