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Security audit

China Stock Quotes

Security checks for vulnerabilities and agentic risk

Overview

This skill is a focused China stock quote helper that fetches public market data from Sina Finance and does not show hidden or persistent behavior.

Install this if you are comfortable with the agent making outbound requests to Sina Finance for the stock or index codes you ask about. Treat returned prices as informational market data, not financial advice, and avoid entering secrets or unrelated personal data into quote queries.

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 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 (2)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
86% confidence
Finding

The skill instructs use of shell via curl but does not declare an explicit tool scope or allowed-tools policy. Even though the current examples are hardcoded to Sina Finance endpoints, missing scope boundaries increases the risk that an agent could invoke shell more broadly than intended if later prompts or modifications introduce user-controlled arguments or additional commands.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
92% confidence
Finding

The title and substantial portions of the usage/output guidance are written in Chinese, and the skill does not indicate that this language choice is optional or limited to users who prefer Chinese. Under the policy, forcing a specific language without user opt-in can be a natural-language policy violation unless the locale constraint is clearly justified.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.