CVE-2026-59236

Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection

Published Jul 15, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
Authorization Bypass Through User-Controlled Key (CWE-639) in the Excel import handlers (CustomerImport, LeadImport, ProductImport) in Roskus Prospero Flow CRM before 5.14.0 allows a remote, authenticated user of any role or company to create customer, lead, and product records inside another company's tenant via a spreadsheet whose company_id column points to the victim tenant, uploaded to POST /customer/import/excel/save, which maps company_id directly from the file and performs no check that it matches the authenticated user's company.

Remediation

Vendor Solution

Upgrade to version 5.14.0 or higher.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Authorization Bypass Through User-Controlled Key (CWE-639) in the Excel import handlers (CustomerImport, LeadImport, ProductImport) in Roskus Prospero Flow CRM before 5.14.0 allows a remote, authenticated user of any role or company to create customer, lead, and product records inside another company's tenant via a spreadsheet whose company_id column points to the victim tenant, uploaded to POST /customer/import/excel/save, which maps company_id directly from the file and performs no check that it matches the authenticated user's company.
Title Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection
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

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Secur0
Published
Updated
Jul 15, 2026, 12:22 PM
Reserved
Jul 3, 2026, 11:24 AM
Status
Deferred
Published
Jul 15, 2026, 12:18 PM
Modified
Oct 24, 2026, 9:10 PM