Roskus Prospero Flow CRM up to 5.4.6 Product Management ProductRepository::save ID improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Roskus Prospero Flow CRM up to 5.4.6. This issue affects the function ProductRepository::save of the component Product Management. Such manipulation of the argument ID leads to improper authorization. This vulnerability is uniquely identified as CVE-2026-19734. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Roskus Prospero Flow CRM up to 5.4.6. It has been rated as critical. Affected by this issue is the function ProductRepository::save of the component Product Management. The manipulation of the argument id with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Missing Authorization and Authorization Bypass Through User-Controlled Key in the product management component in Roskus Prospero Flow CRM before 5.4.7 allows authenticated users of any company to read the full sensitive data (price, cost, stock, SKU, and barcode) of another company's product and to hijack that product by reassigning its company_id, via the product's numeric identifier, because `ProductUpdateController` did not extend `MainController` and therefore required no authentication check on the read endpoint, and `ProductRepository::save()` retrieved the record via `Product::find($data['id'])` without constraining the query to the authenticated user's company before overwriting its company_id.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-19734 since 08/13/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 5.4.7 eliminates this vulnerability.

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Productinfo

Type

• Customer Relationship Management System

Vendor

• Roskus

Name

• Prospero Flow CRM

Version

• 5.4.0
• 5.4.1
• 5.4.2
• 5.4.3
• 5.4.4
• 5.4.5
• 5.4.6

CPE 2.3info

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CPE 2.2info

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