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Security audit

Crypto Research using CoinMarketCap MCP

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward cryptocurrency research helper that uses disclosed CoinMarketCap MCP tools and does not include hidden code or local data access.

Before installing, understand that this skill may invoke on broad crypto research or investment-style questions and will use CoinMarketCap MCP data. Configure the API key only through your MCP settings, and treat outputs as research rather than financial advice.

A.I.G

Vulnerability Patterns
  • 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
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Confidence
95% confidence
Finding
The trigger list includes broad natural-language phrases such as "tell me about [coin]", "should I invest in [coin]", and "is [coin] safe", which are common user requests and may cause the skill to auto-invoke in situations where the user did not explicitly request this specific toolchain. Unintended invocation can lead to unnecessary external data access, user confusion, and overuse of the CoinMarketCap MCP integration, especially in environments where skills are selected automatically from conversational text.

Static analysis

No suspicious patterns detected.