ClawHub
Back to skill

Security audit

Invoice Generator

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward invoice document generator that stores invoice files locally, with no evidence of hidden code, external data transfer, or destructive behavior.

Install this only if you are comfortable with the agent creating and later reading local invoice records, including business, client, payment, and tax details. Review generated invoices before sending them, and store them only in a workspace appropriate for sensitive billing information.

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
  • 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
Findings (2)

Vague Triggers

Medium
Confidence
93% confidence
Finding
The README shows broad natural-language invocations such as 'Invoice Acme Corp $5,000 for website redesign, net 30' and 'Create this month's invoice for my retainer client' without defining clear trigger boundaries, required confirmation, or exclusions. In an agent setting, this can cause over-broad activation or unintended execution from ordinary conversation, especially because invoicing is a financially sensitive action that may create or modify billing records.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The skill explicitly directs the agent to save invoices for record-keeping and reuse prior business details, which implies persistent storage and retrieval of personal and financial data without any consent, retention, access-control, or deletion guidance. In a billing workflow this can expose sensitive business and client information, create cross-user data leakage risks, and cause privacy/compliance issues if the hosting agent shares storage across sessions or users.

Static analysis

No suspicious patterns detected.