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Security audit

Clawpay

Security checks for vulnerabilities and agentic risk

Overview

This payment skill is not deceptive, but it asks agents to handle wallet keys, reusable signatures, external API calls, and real token transfers without enough safeguards or warning.

Review carefully before installing or using. Use only a dedicated low-balance wallet, avoid pasting a primary wallet private key into the Node process, verify the recipient, amount, token, chain, and invoice destination before any transfer, and prefer a testnet or sandbox flow until the service provides nonce-bound signatures, signed invoices, pinned dependencies, and explicit confirmations.

A.I.G

Vulnerability Patterns
  • Insecure DependenciesIntroduces malicious components through unsafe dependency sources
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Findings (3)

T09 · Insecure Skill Coding Practices

Error
Location
SKILL.md:37
Finding

Reusable wallet signature is transmitted in URL query parameters

Content
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Remediation
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T09 · Insecure Skill Coding Practices

Error
Location
SKILL.md:48
Finding

Irreversible token transfer trusts an unverified server-provided destination

Content
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Remediation
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T08 · Insecure Dependencies

Warning
Location
SKILL.md:85
Finding

Unpinned dependency installation occurs in a wallet-key handling workflow

Content
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Remediation
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SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill tells users to 'just run' a script that requires a wallet private key, signs an authentication message, calls a third-party API, and performs a real USDT transfer on BSC, but it does not prominently warn that this will move real funds and disclose wallet-derived authentication material to an external service. In an agent-skill context, this is especially dangerous because automation may execute examples with minimal human review, causing unintended spending or trust in an unvetted payment flow.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 191)May include surrounding context.

Need Gas?

bash
curl -X POST https://clawpay.dev/faucet \
  -H "Content-Type: application/json" \
  -d '{"address": "0xYourAddress"}'

Static analysis

No suspicious patterns detected.