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Security audit

Norman: Financial Overview

Security checks for vulnerabilities and agentic risk

Overview

This skill reads and summarizes business finance data through a declared Norman Finance MCP integration, with no hidden code, persistence, or mutation behavior found.

Install only if you intend the agent to access Norman Finance business data such as balances, transactions, invoices, VAT deadlines, and tax statistics when you ask for a financial overview. Consider confirming the intended company/account before use in shared or multi-business environments.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (3)

Vague Triggers

Medium
Confidence
94% confidence
Finding
The skill description includes broad trigger phrases such as requests about a user's 'financial status,' 'dashboard,' 'summary,' or 'how is my business doing?', which can cause the skill to activate in situations where the user did not explicitly intend to access sensitive financial systems. Because the skill retrieves business balances, transactions, invoices, and tax data, unintended invocation can expose highly sensitive information or prompt unnecessary backend access.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The skill is designed to aggregate sensitive financial data from multiple sources, including balances, transactions, unpaid invoices, and tax information, but it provides no user-facing notice that protected business financial records will be accessed. In a conversational setting, this creates a meaningful privacy and consent risk because the user may not realize the scope of data retrieval or how much account information will be surfaced.

Natural-Language Policy Violations

Low
Confidence
91% confidence
Finding
The instruction 'Use EUR currency formatting' forces a specific currency/locale presentation. The file does not provide user opt-in, fallback behavior, or a documented reason that the skill is limited to EUR-based businesses, creating a natural-language locale policy concern.

Static analysis

No suspicious patterns detected.