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Security audit

China Stock Analysis.Bak2

Security checks for vulnerabilities and agentic risk

Overview

This skill is a plain Markdown guide for stock analysis, with no code execution, persistence, credential handling, or hidden data access.

Before installing, note that this skill can produce buy/hold/sell-style stock opinions based on web-searched market data, including some US tickers despite the China-focused name. Treat outputs as informational, verify prices and sources independently, and do not rely on it as personalized financial advice.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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 (4)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The instruction mandates a fixed Chinese disclaimer string: "Always include" followed by Chinese text. This imposes a specific language on all users without opt-in or an explicit note that the skill is intended only for Chinese-language interactions, which matches the locale/language policy violation criteria.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The manifest says the skill is for analyzing Chinese stock prices specifically for A-shares and Hong Kong stocks. This reference file adds a full 'US Stocks' section, including both US tech giants and US-listed Chinese companies, which broadens the operational subject matter beyond the declared scope.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
92% confidence
Finding

The manifest description limits the skill to Chinese stock analysis, specifically A-shares and Hong Kong stocks. However, the supported markets table explicitly includes US tickers such as AAPL, TSLA, and NVDA, expanding the documented behavior beyond the stated scope.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
85% confidence
Finding

This markdown file mixes English headings with predominantly Chinese section titles, descriptions, and search guidance, effectively constraining comprehension to Chinese readers. The file does not state that it is intentionally region/language-specific or offer an alternative language option, which can violate language/locale policy requirements for user-facing skill content.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.