Roskus Prospero Flow CRM up to 5.15.x Photo Upload product save unrestricted upload

Summaryinfo

A vulnerability described as critical has been identified in Roskus Prospero Flow CRM up to 5.15.x. This impacts the function ProductSaveController::save of the file public/asset/upload/product of the component Photo Upload. Executing a manipulation can lead to unrestricted upload. The identification of this vulnerability is CVE-2026-81931. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Roskus Prospero Flow CRM up to 5.15.x. It has been declared as critical. This vulnerability affects the function ProductSaveController::save of the file public/asset/upload/product of the component Photo Upload. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Unrestricted Upload of File with Dangerous Type in the product photo upload in Roskus Prospero Flow CRM before 5.16.0 allows an authenticated user holding the create product permission (routine Seller role) to execute arbitrary JavaScript in the application origin. The photo validation rule classifies the file only by its content (magic bytes) and rejects only a fixed list of PHP extensions, while ProductSaveController::save() names the stored file using the client-supplied extension and copies it into the public web root. A file that begins with an image header and carries an HTML extension passes validation, is stored under public/asset/upload/product/, and is served with a text/html content type, turning the upload into first-party stored script execution.

The advisory is available at github.com. This vulnerability was named CVE-2026-81931 since 08/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

Upgrading to version 5.16.0 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
• 5.14
• 5.15

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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