Common Utils used across Controller and Liquidity Layer

XOXNO is a decentralized DeFi protocol on MultiversX, enabling liquid staking of $EGLD for tokenized issuance, alongside a lending and borrowing market where users supply liquidity to earn interest or borrow against collateral. It uniquely uses tokenized NFTs as user accounts, supports LP tokens, and features siloed markets, isolated markets, and eMode categories for advanced risk isolation.

Imprecision on accounting (balances, rates)

Manipulation of interest rates (supply or borrow) with mechanisms not intended or limited by design

Loss of rewards-to-be-accrued

Manipulation of governance voting result deviating from voted outcome and resulting in a direct change from intended effect of original results

Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield

Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties

Permanent freezing of funds

Permanent freezing of NFTs

Unauthorized minting of NFTs

Predictable or manipulable RNG that results in abuse of the principal or NFT

Unintended alteration of what the NFT represents (e.g. token URI, payload, artistic content)

Protocol insolvency

Theft of unclaimed yield

Theft of unclaimed royalties

Permanent freezing of unclaimed yield

Permanent freezing of unclaimed royalties

Temporary freezing of funds

Temporary freezing of NFTs

Smart contract unable to operate due to lack of token funds

Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)

Codebase

The contract of the $xEGLD token that acts as LSD for the native $EGLD

XOXNO Liquid Staking

Documentation

Rewards are distributed according to the impact of the vulnerability based on the [Immunefi Vulnerability Severity Classification System V2.3](https://immunefi.com/immunefi-vulnerability-severity-classification-system-v2-3/). 

__Reward Calculation for Critical Level Reports__

For critical smart contract bugs, the reward amount is 10% of the funds directly affected up to a maximum of USD 20 000. The calculation of the amount of funds at risk is based on the time and date the bug report is submitted. However, a minimum reward of USD 5 000 is to be rewarded in order to incentivize security researchers against withholding a critical bug report.

For critical smart contract bugs on testnet assets, the reward is paid as a flat amount of USD 5 000. This is because there are no actual funds at risk on the testnet, hence limits objective calculation. 

__Repeatable Attack Limitations__

- If the smart contract where the vulnerability exists can be upgraded or paused, only the initial attack will be considered for a reward. 
- The amount of funds at risk will be calculated with the impact of the first attack being at 100% and then a reduction of 25% from the amount of the first attack for every [300 blocks] the attack needs for subsequent attacks from the first attack, rounded down.

__Reward Calculation for High Level Reports__

- High impacts concerning theft/permanent freezing of unclaimed yield/royalties are rewarded within a range of USD 3500  to USD 5000  with the reward calculated based on 100% of the funds at risk, though capped at the maximum high reward. 
- In the event of temporary freezing, the reward doubles from the full frozen value for every additional 24h that the funds are temporarily frozen, up until a max cap of the high reward. 

__Reward Payment Terms__

Payouts are handled by the XOXNO team directly and are denominated in USD. However, payments are done in USDC on ETH.

The calculation of the net amount rewarded is based on the average price between CoinMarketCap.com and CoinGecko.com at the time the bug report was submitted. No adjustments are made based on liquidity availability.

Title	Description	Link
Codebase	XOXNO Codebase
XOXNO Liquid Staking	The contract of the $xEGLD token that acts as LSD for the native $EGLD