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Security audit

bollinger-bands-pro

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small Bollinger-band signal wrapper that makes a disclosed external API call and does not show hidden persistence, credential access, or destructive behavior.

Before installing, be aware that using the skill sends requested tickers to an external API and may return a crypto payment prompt for premium signals. Do not send payment unless you trust the publisher and have verified the pricing and wallet details independently.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
88% confidence
Finding

The skill indicates code usage that may perform external calls (execute(...)) and the description explicitly references payment proof, suggesting network interaction, but it does not declare any permissions or allowed-tools scope. This creates an authorization and transparency gap: hosts or reviewers cannot clearly constrain or audit external communication behavior, increasing the risk of unexpected outbound requests or data exfiltration.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.