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Security audit

newsletter-signup-generator

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple newsletter signup form guidance document with no executable code or hidden high-impact behavior.

Safe to install for newsletter signup form design help. Be aware it may activate for general newsletter topics where a broader email marketing skill would be a better fit.

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 (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill description is broad enough to activate on generic mentions like 'newsletter' or 'email signup' without clear user intent to invoke a specialized signup-form skill. This can cause inappropriate routing or over-eager tool/skill selection, leading to irrelevant guidance and reduced reliability, though it does not by itself create direct code-execution or data-exfiltration risk.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.