Auth bypass in Roskus Prospero Flow Crm

CVE-2026-78365

Authorization Bypass Through User-Controlled Key in the supplier API in Roskus Prospero Flow CRM 4.0.0 through 5.3.1 allows any authenticated user to read and modify another company's supplier record, and to reassign it to their own company, via a PUT request to /api/supplier/{id} setting company_id in the body.

Vulnerability class: IDOR (Insecure Direct Object Reference)