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Security audit

tripadvisor

Security checks for vulnerabilities and agentic risk

Overview

The skill provides travel searches through a disclosed third-party service, with no evidence of unrelated access or harmful actions.

Review and preferably pin the external package version, and protect your API key. Searches send supplied terms and locations to TripAdvisor; use a city or approximate location when sufficient. Enable the optional browser bridge only if you intend to permit browser-session use. This review covers the skill instructions, not a complete audit of the external package.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

MCP Config Access

High
Category
Agent Snooping
Confidence
95% confidence
Finding

Skill accesses MCP server configuration files (mcp.json). MCP configs contain server URLs, authentication tokens, and tool definitions — reading them allows the skill to discover and potentially abuse other tool integrations.

Content

Scanner excerpt · SKILL.md (reported line 17)May include surrounding context.

Option A — npx (recommended)

Add to .mcp.json in your project or ~/.claude/mcp.json:

json
{

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
75% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 68)May include surrounding context.

md
`ta_search_locations`, `ta_search_nearby`, `ta_get_locations` and
`ta_get_location_reviews` take `view: "compact" | "full"`, and **`compact` is
the default** — the slim rung is what you get without asking for it. Pass
`view: "full"` for TripAdvisor's whole records.

The compact rung is not the same operation on all four:

The search workflow lacks a privacy notice about sending user-provided search terms and location data to TripAdvisor.

Medium
Category
Output Handling
Confidence
86% confidence
Finding

The workflow instructs the agent to run location or nearby searches, whose inputs can include user-provided coordinates or other location information. Although the file identifies the Terra API and describes operations as read-only, it does not warn that these inputs are transmitted to a third-party service; read-only access does not eliminate this privacy impact.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.