phantom

Warn

Audited by Snyk on Apr 19, 2026

Risk Level: MEDIUM
Full Analysis

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 1.00). The skill's required workflow (SKILL.md + references such as references/helius-das.md, references/helius-enhanced-transactions.md, references/helius-websockets.md, and references/helius-sender.md) explicitly instructs the agent to call public Helius endpoints and MCP tools that ingest and parse open/public, user-controlled off-chain metadata (Arweave/IPFS), transaction data, and third‑party serialized transactions—content the agent will read/interpret and that can materially change subsequent actions (e.g., parsing instructions, modifying/forwarding txs), so it clearly exposes the agent to untrusted third‑party content capable of indirect prompt injection.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 0.90). The skill instructs installing and running remote code at runtime via the command "claude mcp add helius npx helius-mcp@latest", which uses npx to fetch and execute a remote npm package that the skill relies on (Helius MCP) — this is a runtime fetch that executes remote code.

MEDIUM W009: Direct money access capability detected (payment gateways, crypto, banking).

  • Direct money access detected (high risk: 1.00). The skill is explicitly built to perform blockchain financial operations. It instructs connecting wallets (Phantom Connect), signing transactions in the browser/mobile, and submitting signed transactions via Helius Sender. Specific capabilities called out include transferring SOL/SPL tokens, NFT minting (creating/minting assets), accepting crypto payments (checkout flow + backend verification), and using Helius Sender and priority fee APIs to submit transactions. These are direct crypto transaction execution primitives (wallet signing + submit), which fall under "Crypto/Blockchain (Wallets, Swaps, Signing)" in the core rule.

Issues (3)

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

W009
MEDIUM

Direct money access capability detected (payment gateways, crypto, banking).

Audit Metadata
Risk Level
MEDIUM
Analyzed
Apr 19, 2026, 07:10 PM
Issues
3