Critical-risk tools in Whmcs

Critical severity Whmcs MCP Server 12 of 62 tools

12 of the 62 tools in Whmcs are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.

Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.

Tools at critical risk

whmcs_cancel_order Destructive

Cancel an order
whmcs_delete_client Destructive

Delete a client from WHMCS (use with caution)
whmcs_delete_order Destructive

Delete an order (use with caution)
whmcs_delete_quote Destructive

Delete a quote
whmcs_delete_ticket Destructive

Delete a support ticket (use with caution)
whmcs_accept_quote Financial

Accept a quote and convert to invoice
whmcs_fraud_order Destructive

Mark an order as fraudulent
whmcs_add_payment Financial

Record a payment on an invoice
whmcs_module_suspend Destructive

Suspend a service account
whmcs_module_terminate Destructive

Terminate a service account
whmcs_register_domain Financial

Send domain registration command to registrar
whmcs_renew_domain Financial

Send domain renewal command to registrar

Attacks that target this class

Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.

Destructive Action Autonomy
Privilege escalation via admin-only tools
Data exfiltration via tool chaining
Runaway Tool Loops

Critical-risk tools in Whmcs

Tools at critical risk

Attacks that target this class

More on Whmcs

Enforce policy on every Whmcs tool call.