CVE-2026-78365: Prospero Flow CRM 4.0.0 to before 5.3.2

Affected technology

Prospero Flow CRM · 4.0.0 to before 5.3.2
Roskus

Description’s affected range: Through User-Controlled Key in the supplier API in Roskus Prospero Flow CRM 4.0.0 through 5.3.1

Component: Supplier API
File: app/Http/Controllers/Api/Supplier/SupplierUpdateController.php

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Any authenticated user can 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. Source advisory’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality and integrity impact as high; availability impact as none.