CVE-2026-59237

IDOR in Prospero Flow CRM Order API allows cross-tenant read and modification of orders

MEDIUM
6.9
CVSS Score
Published: July 16, 2026 at 02:35 PM UTC
Updated: October 24, 2026 at 09:10 PM UTC
1 product affected across 1 vendorProspero Flow CRM

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.6.0 ≤ v < 5.5.34.6.0
Affected range stops below 5.5.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMSecur0
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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