list_php_versions

THE RISK

Low Risk

Why list_php_versions needs a policy

This tool only retrieves and displays information about installed PHP versions. It performs no modifications, deletions, code execution, or financial operations. The blast radius of misuse is minimal—an AI agent cannot cause harm by repeatedly listing PHP versions. This is a straightforward informational read operation.

From the tool's definition Tool name 'list_php_versions' and description 'List all installed PHP versions available on the server' indicate a query operation with no side effects. The verb 'list' is a read-only action that retrieves information about server configuration.

Documented attack patterns abuse exactly the kind of access list_php_versions gives an agent:

POLICY

How to control list_php_versions

PolicyLayer is an MCP gateway — it sits between your AI agents and cPanel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_php_versions:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_php_versions": {}
  }
}

list_php_versions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register cPanel MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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FAQ

Questions about list_php_versions

What does the list_php_versions tool do? +

List all installed PHP versions available on the server. It is categorised as a Read tool in the cPanel MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_php_versions? +

Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for list_php_versions: 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 cPanel MCP Server. Nothing to install.

What risk level is list_php_versions? +

list_php_versions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_php_versions? +

Yes. Add a rate_limit block to the list_php_versions 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.

How do I block list_php_versions completely? +

Set action: deny in the PolicyLayer policy for list_php_versions. 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.

What MCP server provides list_php_versions? +

list_php_versions is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every cPanel MCP Server tool call.

Start from cPanel MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →