Bug Bounty

Community engagement incentives

Program overview

The fundamental issue within most current stablecoin protocols is positive externality. The cost of producing and maintaining stablecoins are incurred by the protocol and its users (minters, shareholders, bondholders). Whereas the majority of the value comes from the transaction of stablecoins within DeFi primitives and is captured by these DeFi primitives.

Mars Ecosystem solves this problem by integrating the creation and the use of stablecoin into one stable yet decentralized ecosystem. The relationship between Mars Stablecoin and Mars DeFi platform creates a positive feedback loop and generates a flywheel effect.

Mars Stablecoin (USDm) is price stable, capital-efficient, scalable and decentralized. It is an over-backed stablecoin: the redeemability of USDm is backed by the Mars Ecosystem Governance Token (XMS). The market cap of XMS is always multiple times the market cap of Mars Stablecoin which ensures that the stablecoin can be redeemed 1:1 at any given time.

Mars Swap provides liquidity between Mars Stablecoin and all the other tokens, making USDm the ideal medium of exchange and store of value for DeFi. The incurred transaction fees generated at Mars Swap are used to back the stability of Mars Stablecoin.

This bug bounty program is focused on their smart contracts and app and is focused on preventing the following impacts💡:

  • Thefts and freezing of principal of any amount

  • Thefts and freezing of unclaimed yield of any amount

  • Theft of governance funds

  • Governance activity disruption

  • Website goes down

  • Leak of user data

  • Deletion of user data

  • Access to sensitive pages without authorization

  • Smart contracts fails to delivery promised returns based on APR

All bug submissions must go through Immunefi's bug submission process on the Marsecosystem bug bounty page

The Marecosystem bug bounty page can be viewed at:


When a hacker hits the "Submit bug report" button, they will be sent to bugs.immunefi.com which will guide them through the process of creating a bug report.

Rewards by threat level

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System. This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts/blockchains, encompassing everything from consequence of exploitation to privilege required to likelihood of a successful exploit.

All web/app bug reports must come with a PoC in order to be considered for a reward.

Bugs reported in the following audits are not eligible for a reward:

SlowMist Audit

CertiK Audit

Payouts are handled by the Mars Ecosystem team directly and are denominated in USD. However, payouts are done in XMS or BUSD, at the discretion of the team.

Smart Contracts and Blockchain

  • Critical Up to $60,000

  • High $15,000

  • Medium $5,000

  • Low $1,000

Websites and Apps

  • Critical $10,000

  • High $5,000

  • Medium $1,000

Assets in Scope

All smart contracts of Mars Ecosystem can be found at https://github.com/MarsEcosystem. However, only those in the Assets in Scope table are considered as in-scope of the bug bounty program.

Impacts in Scope

Only the following impacts are accepted within this bug bounty program. All other impacts are not considered as in-scope, even if they affect something in the assets in the scope table.

Smart Contracts

  • Loss of user funds staked (principal) by freezing or theft

  • Loss of governance funds

  • Theft of unclaimed yield

  • Freezing of unclaimed yield

  • Temporary freezing of funds for any amount of time

  • Unable to call smart contract

  • Smart contract gas drainage

  • Smart contract fails to deliver promised returns

  • Vote manipulation

  • Incorrect polling actions


  • Incorrect or unintended behavior relating to money. (ie. user input is for 10 USDC on the app, and we actually send 100 USDC to the smart contract)

  • We are pointing to an incorrect smart contract

  • Cross-site request forgery (CSRF)

  • Cross-site scripting (XSS)

Prioritized Vulnerabilities

We are especially interested in receiving and rewarding vulnerabilities of the following types:

Smart Contracts and Blockchain

  • Re-entrancy

  • Logic errors

    • including user authentication errors

  • Solidity/EVM details not considered

    • including integer over-/under-flow

    • including rounding errors

    • including unhandled exceptions

  • Trusting trust/dependency vulnerabilities

    • including composability vulnerabilities

  • Oracle failure/manipulation

  • Novel governance attacks

  • Economic/financial attacks

    • including flash loan attacks

  • Congestion and scalability

    • including running out of gas

    • including block stuffing

    • including susceptibility to frontrunning

  • Consensus failures

  • Cryptography problems

    • Signature malleability

    • Susceptibility to replay attacks

    • Weak randomness

    • Weak encryption

  • Susceptibility to block timestamp manipulation

  • Missing access controls / unprotected internal or debugging interfaces

Websites and Apps

  • Remote Code Execution

  • Trusting trust/dependency vulnerabilities

  • Vertical Privilege Escalation

  • XML External Entities Injection

  • SQL Injection


  • Horizontal Privilege Escalation

  • Stored XSS

  • Reflective XSS with impact

  • CSRF with impact

  • Direct object reference

  • Internal SSRF

  • Session fixation

  • Insecure Deserialization


  • SSL misconfigurations

  • SSL/TLS issues (weak crypto, improper setup)

  • URL redirect

  • Clickjacking (must be accompanied with PoC)

  • Misleading Unicode text (e.g. using right to left override characters)

Out of Scope & Rules

The following vulnerabilities are excluded from the rewards for this bug bounty program:

  • Attacks that the reporter has already exploited themselves, leading to damage

  • Attacks requiring access to leaked keys/credentials

  • Attacks requiring access to privileged addresses (governance, strategist)

Smart Contracts and Blockchain

  • Incorrect data supplied by third party oracles

    • Not to exclude oracle manipulation/flash loan attacks

  • Basic economic governance attacks (e.g. 51% attack)

  • Lack of liquidity

  • Best practice critiques

  • Sybil attacks

Websites and Apps

  • Theoretical vulnerabilities without any proof or demonstration

  • Content spoofing / Text injection issues

  • Self-XSS

  • Captcha bypass using OCR

  • CSRF with no security impact (logout CSRF, change language, etc.)

  • Missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”)

  • Server-side information disclosure such as IPs, server names, and most stack traces

  • Vulnerabilities used to enumerate or confirm the existence of users or tenants

  • Vulnerabilities requiring unlikely user actions

  • URL Redirects (unless combined with another vulnerability to produce a more severe vulnerability)

  • Lack of SSL/TLS best practices

  • DDoS vulnerabilities

  • Attacks requiring privileged access from within the organization

  • Feature requests

  • Best practices

The following activities are prohibited by this bug bounty program:

  • Any testing with mainnet or public testnet contracts; all testing should be done on private testnets

  • Any testing with pricing oracles or third party smart contracts

  • Attempting phishing or other social engineering attacks against our employees and/or customers

  • Any testing with third-party systems and applications (e.g., browser extensions) as well as websites (e.g., SSO providers, advertising networks)

  • Any denial of service attacks

  • Automated testing of services that generates significant amounts of traffic

  • Public disclosure of an unpatched vulnerability in an embargoed bounty

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