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Security audit

Currency Forecast Pro

Security checks for vulnerabilities and agentic risk

Overview

This skill performs disclosed currency-rate analysis using a public exchange-rate API and does not show hidden, persistent, destructive, or credential-seeking behavior.

Install only if you are comfortable with the agent making outbound requests for currency data and market research. Treat the forecasts as informational analysis, not financial or trading advice.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Lp3

Medium
Category
MCP Least Privilege
Confidence
88% confidence
Finding
The skill advertises use of network-capable functionality (`exec` for API calls and `web_search`) but does not declare any explicit tool scope such as `permissions` or `allowed-tools`. This creates an authorization ambiguity where a host agent may grant broader-than-intended capabilities, increasing the risk of unintended outbound requests, data exfiltration, or tool misuse if the skill behavior expands or is prompt-injected.

Vague Triggers

Medium
Confidence
93% confidence
Finding
The skill description is broad marketing language that promises professional exchange-rate analysis and forecasting for any currency pair without defining clear trigger boundaries, scope limits, or operational constraints. In an agent ecosystem, this can cause the skill to be invoked too broadly for finance-related queries and increase the chance of over-trusting outputs in a high-stakes domain like trading or forex decisions.

External Transmission

Medium
Category
Data Exfiltration
Content
end_date = datetime.now().strftime('%Y-%m-%d')
    start_date = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
    
    url = f"https://api.frankfurter.app/{start_date}..{end_date}?from={base}&to={target}"
    
    try:
        with urllib.request.urlopen(url, timeout=10) as response:
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.