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Security audit

WellFred Services

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed WellFred integration for Costa Rica service discovery, quote requests, and email-verified booking preparation, with user approval required before submissions.

Before installing, be aware that the skill can send customer-provided contact, location, timing, and service-request details to WellFred after approval. It does not confirm bookings or collect payment itself; booking confirmation happens through WellFred email verification.

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
  • 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 (1)

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
81% confidence
Finding

The instruction says to resolve relative dates in America/Costa_Rica, which imposes a locale/timezone behavior regardless of the user's own locale. While Costa Rica context is relevant, the file does not explicitly tell the agent to confirm or offer this timezone handling to the user when interpreting relative dates.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.