CVE-2026-19734 in Prospero Flow CRM
Summary
by MITRE • 08/13/2026
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($data['id'])` without constraining the query to the authenticated user's company before overwriting its company_id.
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Analysis
by VulDB Data Team • 08/13/2026
The vulnerability identified in Roskus Prospero Flow CRM affects the product management component and represents a critical authorization bypass flaw that undermines the fundamental security boundaries between companies within the system. This issue exists in versions prior to 5.4.7 and allows authenticated users to access and manipulate data belonging to other companies through a combination of missing authentication checks and improper data validation mechanisms. The vulnerability specifically targets the ProductUpdateController which fails to properly extend the MainController class, thereby eliminating required authentication verification on read operations. This architectural flaw creates a pathway for unauthorized data access that extends beyond normal user permissions and company boundaries.
The technical implementation of this vulnerability stems from two primary code-level issues within the product management module. First, the ProductUpdateController does not inherit proper authentication checks that should be enforced by the MainController base class, leaving read endpoints unprotected against unauthorized access attempts. Second, the ProductRepository::save() method directly retrieves records using Product::find($data['id']) without implementing company-specific constraints on the database query. This allows malicious users to exploit numeric identifiers to target products from other companies and subsequently modify their company_id field through reassignment operations. The combination of these flaws creates a complete bypass of the authorization system, enabling users to access sensitive product information including pricing details, cost structures, inventory levels, stock quantities, SKU identifiers, and barcode information.
The operational impact of this vulnerability extends far beyond simple data exposure, as it enables full data hijacking capabilities that can compromise business operations and competitive advantages. An authenticated user can not only read sensitive commercial information belonging to competing companies but also actively manipulate product records by changing company ownership through the company_id field modification. This creates a scenario where users could gain unauthorized access to confidential pricing strategies, inventory management data, and business-critical product information while simultaneously being able to reassign products between companies. The vulnerability essentially allows for cross-company data theft and manipulation, undermining the core multi-tenancy security model that should protect individual company data isolation. Such capabilities can result in significant financial losses, competitive disadvantages, and potential regulatory violations depending on industry-specific compliance requirements.
This vulnerability aligns with multiple cybersecurity standards and threat modeling frameworks, particularly CWE-285 which addresses improper authorization scenarios, and represents a clear example of authorization bypass through user-controlled key manipulation. The ATT&CK framework categorizes this as a privilege escalation technique where an authenticated user leverages application flaws to gain unauthorized access to resources beyond their intended scope. Organizations should implement immediate mitigations including ensuring proper controller inheritance for authentication checks, implementing company-level constraints in database queries, and enforcing strict authorization boundaries on all data modification operations. The fix requires updating the ProductUpdateController to properly extend MainController and modifying the ProductRepository::save() method to include company-specific query restrictions when retrieving and updating product records. Additionally, organizations should consider implementing comprehensive access logging and monitoring mechanisms to detect unauthorized attempts to access cross-company data resources.
The broader implications of this vulnerability highlight the critical importance of proper security architecture design and implementation within business applications. It demonstrates how seemingly minor architectural decisions such as controller inheritance can have profound security consequences, particularly in multi-tenant environments where data isolation is paramount. This flaw serves as a reminder that authorization mechanisms must be robustly implemented at every layer of application architecture rather than relying on single points of control. Organizations utilizing similar CRM platforms should conduct thorough security assessments to identify and remediate comparable authorization bypass vulnerabilities throughout their software ecosystems, particularly focusing on database query constraints and controller inheritance patterns that may inadvertently expose sensitive data across user boundaries.