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Security audit

China Stock Analysis.Bak

Security checks for vulnerabilities and agentic risk

Overview

This is a markdown-only stock-analysis skill that asks the agent to gather public market data and present financial commentary, with no hidden code, credential access, persistence, or local system changes.

Before installing, understand that this skill is designed to produce stock commentary and explicit buy/hold/sell suggestions from public market information. Treat outputs as educational analysis, not personalized financial advice, and note that it also includes US-stock examples despite the China-focused description.

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)

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The manifest says the skill is for analyzing Chinese stock prices, specifically A-shares and HK stocks. However, the supported markets table includes US tickers such as AAPL, TSLA, and NVDA, expanding the behavior beyond the declared scope.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The prescribed response template is entirely in Chinese and the required disclaimer is also mandated in Chinese, which imposes a specific language on users without opt-in. This is a natural-language policy issue because the skill does not indicate that users may receive analysis in another language or choose their preferred locale.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The manifest says this skill analyzes Chinese stock prices, specifically A-shares and HK stocks, but this file also provides a dedicated 'US Stocks' section with major US tech names and search guidance for US tickers. That expands the apparent subject matter beyond the declared scope and could lead the skill to handle non-Chinese equities not covered by its description.

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 presents nearly all headings, descriptions, and usage tips in Chinese, which effectively forces a specific language/locale for users. The file does not indicate that the language is optional, user-selected, or justified as a region-specific compliance requirement.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.