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Security audit

Youtube API

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward YouTube data API helper that openly uses a paid external service, with no bundled code or hidden local behavior found.

Install only if you are comfortable sending YouTube search terms, channel/video/playlist identifiers, and related requests to youtube.fetcher.sh. Treat calls as paid usage, protect the FETCHER_API_KEY like a billing credential, and confirm before using sensitive searches or enabling automated workflows that could make many paid calls.

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
  • 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 (1)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill routes user-supplied search queries, channel identifiers, handles, playlist IDs, and similar inputs to an external third-party service and explicitly supports paid usage, but the description does not prominently warn users that their data leaves the platform and may trigger billable requests. This can lead to unintended disclosure of potentially sensitive search intent and surprise charges, especially in agentic or automated workflows where users may not realize each call is external and monetized.

Content

No source excerpt is available for this finding.

Static analysis

Detected: suspicious.exposed_secret_literal

File appears to expose a hardcoded API secret or token.

Critical
Code
suspicious.exposed_secret_literal
Location
SKILL.md:42