InvoicePlane has Stored XSS via Family Name in Product Form

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability exists in InvoicePlane 1.7.0 via the Family Name field. The `family_name` value is rendered without HTML encoding inside the family dropdown on the product form. When an administrator creates a family with a malicious name, the payload executes in the browser of any administrator who visits the product form. Version 1.7.1 patches the issue.