CVE-2026-59236: Roskus Prospero Flow CRM

Medium severity, CVSS 6.9. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Roskus Prospero Flow CRM: from 1.0.0, before 5.14.0 (fixed in 5.14.0)

Published 2026-07-15. Last modified 2026-07-15.