CVE-2026-19433
Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export
Description
Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user's company.
INFO
Published Date :
Aug. 10, 2026, 3:17 p.m.
Last Modified :
Aug. 10, 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 Roskus Prospero Flow CRM to version 5.4.8 or later.
- Review access controls for contact management.
- Apply vendor patches promptly.
- Monitor for unauthorized data access.
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-2026-19433.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19433 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-2026-19433
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-2026-19433 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19433 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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 10, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-19433', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-10T17:53:24.253600Z'} -
New CVE Received by 4daa8cea-433a-44bd-9456-53b127fc289a
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/Roskus/prospero-flow-crm', 'vendor': 'Roskus', 'modules': ['Contact management'], 'product': 'Prospero Flow CRM', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.4.8', 'versionType': 'semver'}], 'programFiles': ['app/Repositories/ContactRepository.php', 'app/Http/Controllers/Contact/ContactExportVCard.php'], 'defaultStatus': 'unaffected'}] Added Description Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's personal data as a vCard via the contact's numeric identifier, because the save and export operations retrieve the record without constraining the query to the authenticated user's company. 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/f16b4af2027b17bef7c604c92dbd86cf38082398 Added Reference https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3 Added Reference https://secur0.com/en/cna/cve-list/cve-2026-19433-idor-in-prospero-flow-crm-contact-save-and-vcard-export