Retrieve user profile data including sensitive fields.
AI agents call get_user_data to retrieve information from Vulnerable MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves (rather than modifies or deletes) user profile data. While it accesses sensitive information which elevates severity beyond 'low', it remains in the Read category.
From the tool's definition Tool name 'get_user_data' and description 'Retrieve user profile data including sensitive fields' indicate data retrieval with no modification. The word 'Retrieve' and 'including sensitive fields' confirm read-only access to user information.
Attacks that exploit this kind of access
Retrieve user profile data including sensitive fields. It is categorised as a Read tool in the Vulnerable MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Vulnerable MCP Server MCP server in PolicyLayer and add a rule for get_user_data: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Vulnerable MCP Server. Nothing to install.
get_user_data is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_user_data rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_user_data. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_user_data is provided by the Vulnerable MCP Server MCP server (joyghoshs/vulnerable-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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