Roskus Prospero Flow CRM up to 5.13.x Import save company_id authorization

Summaryinfo

A vulnerability identified as critical has been detected in Roskus Prospero Flow CRM up to 5.13.x. Affected is an unknown function of the file /customer/import/excel/save of the component Import Handler. This manipulation of the argument company_id causes authorization. This vulnerability appears as CVE-2026-59236. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Roskus Prospero Flow CRM up to 5.13.x. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the file /customer/import/excel/save of the component Import Handler. The manipulation of the argument company_id with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-59236 since 07/03/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 5.14.0 eliminates this vulnerability.

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Productinfo

Type

• Customer Relationship Management System

Vendor

• Roskus

Name

• Prospero Flow CRM

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13

CPE 2.3info

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CPE 2.2info

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