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Security audit

blockbeats--skill

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward BlockBeats market-data helper that makes disclosed API calls, with minor caution about broad trigger phrases and sending searches to BlockBeats.

Install only if you are comfortable providing a BlockBeats API key and having market/news queries, including keyword search terms, sent to BlockBeats. Treat generated buy/sell interpretations as informational market commentary, not financial advice, and prefer explicit prompts such as 'search BlockBeats for...' to avoid accidental use.

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
Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger phrases for Scenario 1 are broad enough that ordinary conversation like 'how's the market today' or 'daily summary' could invoke the skill unexpectedly. In an agent environment, this can cause unintended external API calls and disclosure of user intent or context to a third-party service, especially when multiple requests are fired in parallel.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

Multiple request examples force lang=en, which indicates the skill is designed to operate in English regardless of user preference. Because the file does not offer opt-in language selection or explain why English is mandatory, this is a natural-language locale policy concern.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The keyword search triggers are especially ambiguous because patterns like '[keyword] news' or 'what's happening with [keyword]' are common in normal chat and can match many topics unrelated to this skill. This increases the chance of overbroad interception and unintended transmission of arbitrary user-supplied terms to the BlockBeats API.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.