Update a single privacy setting.
AI agents use whatsapp_set_privacy_setting to create or update resources in WSAPI WhatsApp MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your WSAPI WhatsApp MCP Server environment.
This tool modifies user privacy settings in WhatsApp, which is a reversible write operation. While it affects account security posture, it does not execute arbitrary code, delete data irreversibly, or move money. The medium severity reflects that unauthorized privacy setting changes could expose the account to unwanted visibility or contact, but the effect is limited to a single setting and can be reverted.
From the tool's definition Tool name indicates 'set_privacy_setting' which performs an update operation. Description states 'Update a single privacy setting,' confirming modification of existing configuration data.
Attacks that exploit this kind of access
Update a single privacy setting. It is categorised as a Write tool in the WSAPI WhatsApp MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the WSAPI WhatsApp MCP Server MCP server in PolicyLayer and add a rule for whatsapp_set_privacy_setting: 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 WSAPI WhatsApp MCP Server. Nothing to install.
whatsapp_set_privacy_setting is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the whatsapp_set_privacy_setting 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 whatsapp_set_privacy_setting. 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.
whatsapp_set_privacy_setting is provided by the WSAPI WhatsApp MCP Server MCP server (wsapi-chat/wsapi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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