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Security audit

Surprise Buddy

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed gift-search integration that sends gift preference filters to its own external MCP service.

Install only if you are comfortable using Surprise Buddy as an external gift-search provider. Avoid entering sensitive personal details beyond what is needed for gift filtering, and be aware that returned product links may include query parameters that should be preserved for link function or attribution.

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)

External Transmission

Medium
Category
Data Exfiltration
Content
https://www.surprise-buddy.com/openapi.yaml
```

### Plain HTTP / curl
```bash
curl -X POST https://www.surprise-buddy.com/api/mcp \
  -H "Content-Type: application/json" \
Confidence
60% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Static analysis

No suspicious patterns detected.