CVE-2026-19734
IDOR in Prospero Flow CRM allows cross-tenant product disclosure and hijacking
Description
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.
INFO
Published Date :
Aug. 13, 2026, 3:19 p.m.
Last Modified :
Aug. 13, 2026, 6:17 p.m.
Remotely Exploit :
Yes !
Source :
4daa8cea-433a-44bd-9456-53b127fc289a
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 4daa8cea-433a-44bd-9456-53b127fc289a | ||||
| CVSS 4.0 | HIGH | 4daa8cea-433a-44bd-9456-53b127fc289a |
Solution
- Update the product management component to version 5.4.7 or later.
- Ensure all controllers extend MainController for authentication.
- Constrain product queries to the authenticated user's company.
- Review and implement robust authorization logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19734.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19734 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19734
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19734 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19734 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 13, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-19734', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-13T17:00:14.671007Z'} -
New CVE Received by 4daa8cea-433a-44bd-9456-53b127fc289a
Aug. 13, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/Roskus/prospero-flow-crm', 'vendor': 'Roskus', 'modules': ['Product management'], 'product': 'Prospero Flow CRM', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.4.7', 'versionType': 'semver'}], 'programFiles': ['app/Http/Controllers/Product/ProductUpdateController.php', 'app/Http/Controllers/Product/ProductCreateController.php', 'app/Repositories/ProductRepository.php'], 'defaultStatus': 'unaffected'}] Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-639 Added Reference https://github.com/Roskus/prospero-flow-crm/commit/f36c2a115f4c28c82181f1798c01582ae953b932 Added Reference https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3 Added Reference https://secur0.com/en/cna/cve-list/cve-2026-19734-idor-in-prospero-flow-crm-allows-cross-tenant-product-disclosure-and-hijacking