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Security audit

China Stock Analysis 1.0.0

Security checks for vulnerabilities and agentic risk

Overview

This is a markdown-only stock-analysis helper with disclosed web research behavior and no code execution, persistence, credential access, or account-changing authority.

Installers should understand this skill may answer in Chinese and may analyze U.S. tickers despite being described mainly as Chinese stock analysis. Treat its buy, hold, and sell outputs as informational only and verify financial decisions independently.

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
  • 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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The required response template is entirely in Chinese and the workflow instructs the model to use Chinese query formats and wording, which effectively imposes a language preference on all users. This is a natural-language policy issue because the file does not offer opt-in or an alternative language despite also supporting non-Chinese markets like US tickers.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

This markdown file is largely written in Chinese, including headings, sector labels, descriptions, and search tips, while also mixing in English market sections. There is no indication that the user can choose another language or that the skill is intentionally restricted to a Chinese-language audience, which may violate a language/locale policy requiring opt-in or documented justification.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The manifest describes the skill as analyzing Chinese stock prices for A-shares and Hong Kong stocks. This reference file expands the skill's operational scope by including a dedicated U.S. stocks section with major U.S. companies and U.S.-listed Chinese concept stocks, which is broader than the stated scope.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
93% confidence
Finding

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

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.