Flow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other
companies on the same instance via an incremented identifier in GET /api/transaction/{id},
which is resolved without company scoping and without any permission check.
Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Solution
Upgrade to 5.3.6 or later. The fix was not tagged; the first tagged release carrying it is v5.5.3.
Tracking
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No advisories yet.
Fri, 21 Aug 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 21 Aug 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Authorization Bypass Through User-Controlled Key in the transaction API in Roskus Prospero Flow CRM 5.0.0 through 5.3.5 allows an authenticated user to read the transactions of other companies on the same instance via an incremented identifier in GET /api/transaction/{id}, which is resolved without company scoping and without any permission check. | |
| Title | IDOR and missing authorization in the Prospero Flow CRM transaction API allow cross-tenant reading of financial records | |
| First Time appeared |
Roskus
Roskus prospero Flow Crm |
|
| Weaknesses | CWE-639 | |
| CPEs | cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Roskus
Roskus prospero Flow Crm |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Secur0
Published:
Updated: 2026-08-21T11:53:17.782Z
Reserved: 2026-08-21T10:08:00.647Z
Link: CVE-2026-77759
Updated: 2026-08-21T11:53:08.078Z
Status : Received
Published: 2026-08-21T12:16:36.533
Modified: 2026-08-21T12:16:36.533
Link: CVE-2026-77759
No data.
OpenCVE Enrichment
Updated: 2026-08-21T12:45:04Z