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Security audit

FPL(Fantasy Premier League) assistant

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only Fantasy Premier League helper that uses public FPL data and does not install code, persist itself, or request sensitive access.

Before installing, be aware that generic words like "fantasy", "captain", or "transfer" may activate this skill outside FPL contexts. It may ask for a manager ID and fetch public FPL data, so use it only when you are comfortable sharing or referencing that public team 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
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger list includes the standalone term "fantasy," which is overly broad and can match many unrelated user requests. This can cause unintended activation of the skill, leading the agent to load irrelevant instructions and potentially override more appropriate skills or degrade response quality.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The trigger list is broad enough to activate on common terms like "fantasy," "captain," and especially "transfer," which appear in many unrelated contexts. This can cause unintended invocation of the skill, leading the agent to fetch external data or provide domain-specific guidance when the user did not ask for FPL help, increasing the risk of prompt-routing errors and context confusion.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.