---
cve: "CVE-2026-59237"
severity: "MEDIUM"
cvss: 6.9
epss: "0.6%"
vendor: "Roskus"
kev: false
exploited: false
published: "2026-07-16 15:16:34"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-11-02T17:11:17+01:00"
---

# CVE-2026-59237

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **Secur0**
- State: PUBLISHED
- Stand: 2026-07-16 14:55:43
- CNA-CVSS: **6.9** (`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`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-639** — Authorization Bypass Through User-Controlled Key
  The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

## Patch verfügbar (OSV)

- 584f315878b8366244c95fe3cb016b3a63f05db8 (Commit)
- 9a859c4de3d49674916773d346c60d89ad7febe0 (Commit)

## Referenzen

- <https://github.com/Roskus/prospero-flow-crm/commit/9a859c4de3d49674916773d346c60d89ad7febe0>
- <https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3>
- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-59237/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_