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Security audit

旅行疫苗指南

Security checks for vulnerabilities and agentic risk

Overview

This skill is a Chinese travel vaccine lookup helper with static guidance data and no evidence of hidden persistence, credential access, or destructive behavior.

Install this only if Chinese-language travel health guidance is acceptable, and treat the vaccine recommendations as preliminary reference material. Because the data is static and travel health requirements can change, verify requirements with an official travel clinic or public-health source before acting on the 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
  • 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 (3)

Lp3

Medium
Category
MCP Least Privilege
Confidence
84% confidence
Finding
The skill declares network-capable tools but does not specify any tool scope restrictions such as permissions or allowed-tools. This can broaden the runtime authority of the skill beyond what is documented, increasing the chance of unintended external requests, data exposure, or misuse if the skill is later extended or interpreted permissively by the platform.

Natural-Language Policy Violations

Medium
Confidence
95% confidence
Finding
The module docstring explicitly brands the script as a Chinese-language skill, and all user-facing help and result text in the file are written only in Chinese. This creates a language/locale constraint without any documented user choice or opt-in, which matches the policy category for forced language behavior.

Natural-Language Policy Violations

Low
Confidence
82% confidence
Finding
The skill name, description, examples, and usage guidance are presented only in Chinese, which can amount to an implicit language restriction. The policy allows locale constraints when they are explicitly justified or when the user is given a language choice, neither of which appears here.

Static analysis

No suspicious patterns detected.