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Security audit

FHA, VA & USDA Mortgage Rate Watch

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent mortgage-rate information helper with disclosed web lookup, calculator, and optional scheduling behavior, with no evidence of hidden or destructive actions.

Before installing, treat outputs as educational rate summaries, not financial advice. Verify current rates and eligibility with official sources or a licensed mortgage professional, and only set up cron alerts if you want recurring local scheduled checks and understand how to remove them.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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 (2)

Tp4

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The declared description focuses on tracking and summarizing current government-backed mortgage rates and related program information. The supplied code does none of that: it does not access external data, monitor rates, distinguish FHA vs VA vs USDA products, or generate summaries/newsletters. Instead, it only calculates amortized monthly payments for a fixed-rate loan based on user-supplied principal, rate, and term, with an optional comparison to a second rate. That is a materially different primary purpose, so this is a clear mismatch.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger phrases are broad enough to activate this skill for generic mortgage questions beyond FHA/VA/USDA rate-watch use cases. Over-broad routing can cause the wrong skill to handle user requests, leading to inaccurate financial information, unsupported advice, or user confusion in a regulated domain where precision and scope control matter.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.