CVE-2026-59237
MEDIUMIDOR in Prospero Flow CRM Order API allows cross-tenant read and modification of orders
Title source: cnaDescription
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.
References (3)
Core 3
Core References
Patch patch
https://github.com/Roskus/prospero-flow-crm/commit/9a859c4de3d49674916773d346c60d89ad7febe0
Release Notes release-notes
https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
Technical Description technical-description
https://secur0.com/en/cna/cve-list/cve-2026-59237-idor-in-prospero-flow-crm-order-api-allows-cross-tenant-read-and-modification-of-orders
Scores
CVSS v4
6.9
EPSS
0.0037
EPSS Percentile
29.6%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (1)
Roskus/Prospero Flow CRM
4.6.0 - 5.5.3
Published
Jul 16, 2026
Tracked Since
Jul 16, 2026