CVE-2026-59237: Roskus Prospero Flow CRM

Medium severity, CVSS 6.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Authorization Bypass Through User-Controlled Key (CWE-639) in the Order and OrderItem REST API controllers in Roskus Prospero Flow CRM before 5.5.3 allows a remote, authenticated user to read, modify, and delete orders and order items belonging to any other company (tenant) via a sequential numeric {id} supplied to GET /api/order/{id}, PUT /api/order/{id}, GET /api/order-item/{id}, PUT /api/order-item/{id}, or DELETE /api/order-item/{id}, because the controllers resolve records with Order::find($id) / Item::find($id) without scoping by the authenticated user's company.

Affected products

• Roskus Prospero Flow CRM: from 4.6.0, before 5.5.3 (fixed in 5.5.3)

Published 2026-07-16. Last modified 2026-07-16.