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Security audit

Upcoming Metal Concerts

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward concert scraper that uses disclosed network access and local files for its stated purpose.

Installers should expect this skill to contact concerts-metal.com and keep a local cache of concert listings plus country settings. Review or clear the generated data if local event history is sensitive, and prefer using the documented country flag or config keys rather than unrelated file edits.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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)

Lp3

Medium
Category
MCP Least Privilege
Confidence
95% confidence
Finding
The skill instructs the agent to perform network access and modify local files, but it does not declare any explicit tool scope such as allowed tools or permissions. This creates a least-privilege gap: an agent/runtime may grant broader capabilities than necessary, making unintended file writes or outbound requests easier if the skill is misused or composed with other behaviors.

Static analysis

No suspicious patterns detected.