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Security audit

Cruise Product Comparison

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed remote MCP integration for comparing cruise products, with no local code, persistence, credential handling, or destructive behavior found.

Before installing, users should be comfortable sending cruise search criteria to the disclosed CruiseSkillBridge/olavacations MCP endpoint. Non-Chinese-speaking users may find the documentation incomplete or hard to review, and the publisher should clarify localization and replace remaining template text.

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
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (4)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill description and installation guidance are entirely in Chinese, with no indication that the skill is region-specific or that users can choose another language. This can violate language/locale policy when a skill imposes a language without user opt-in or justification.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The manifest description and main explanatory text are written in Chinese, with no indication that the skill supports other languages or that Chinese is a justified region-specific requirement. This can violate language/locale policy expectations when users are not given an opt-in or choice.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The manifest description is written entirely in Chinese and provides no indication that language selection is optional or that the skill is intended only for a Chinese-speaking locale. Under the policy, forcing a specific language without user opt-in is a natural-language policy concern.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

This markdown file presents the skill name, description, and setup instructions entirely in Chinese, without offering a user language choice or explaining that the skill is intended only for a Chinese-speaking audience. Under the policy rule for natural-language violations, forcing a specific language without opt-in is a locale/language policy concern.

Content

No source excerpt is available for this finding.