CVE-2026-59237 IDOR in Prospero Flow CRM Order API allows cross-tenant read and modification of orders
Authenticated users can read, modify, or delete other tenants' orders due to missing authorization checks in the CRM API.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59237?
CVE-2026-59237 is a medium-severity missing authorization vulnerability in Roskus Prospero Flow CRM, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-59237?
How do I fix CVE-2026-59237?
No fix has been published for CVE-2026-59237 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-59237 being exploited?
There is no known exploitation of CVE-2026-59237 in the wild and no public exploit code.
Sources
Also known as GHSA-x8qq-m4qc-rpj5.