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Security audit

CoinMarketCap Exchange APIs

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward CoinMarketCap exchange API reference skill with documented read-only API examples and no hidden execution or persistence behavior.

Installers should treat their CoinMarketCap API key as sensitive: avoid pasting real keys into shared logs, committed scripts, or chat transcripts, and prefer environment variables or a secret manager when running the curl examples. The skill otherwise appears to be read-only API documentation.

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
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 (4)

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

This markdown file includes curl examples that send an API credential via the X-CMC_PRO_API_KEY header, which is a privacy- and security-relevant behavior for markdown under the missing user warnings rule. The document does not include any warning about protecting API keys, avoiding shell history leakage, or using secure secret storage when running the examples.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

This is a markdown file, so missing-warning checks apply to documented behaviors. The examples instruct users to send an X-CMC_PRO_API_KEY credential but do not warn users to keep the key secret, avoid committing it to shell history/scripts, or use secure environment-variable handling.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
86% confidence
Finding

This markdown file includes curl examples that send an X-CMC_PRO_API_KEY header, which is a credential-bearing network operation. The page does not include any warning or note reminding users to protect API keys, avoid committing them, or use secure secret storage, so the behavior lacks user disclosure under the markdown warning criterion.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
90% confidence
Finding

This markdown file includes curl examples that send an X-CMC_PRO_API_KEY header, which is a credential-bearing network operation. The document does not include any warning or note reminding users to protect API keys, avoid sharing command history, or use secure storage, so the examples lack user-facing disclosure about credential sensitivity.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.