High 8.6Published Aug 10, 2026

CVE-2026-19433Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects Roskus Prospero Flow CRM. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Roskus Prospero Flow CRM

Exploited in the last 30 days

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.

CVSS: 8.6 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Secur0
NVD analysis: Deferred
Record last updated: Aug 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Roskus Prospero Flow CRM roskus:prospero_flow_crm (from the name)	before 5.4.8	CNA record

References

https://github.com/Roskus/prospero-flow-crm/commit/f16b4af2027b17bef7c604c92dbd86cf38082398patch
https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3release-notes
https://secur0.com/en/cna/cve-list/cve-2026-19433-idor-in-prospero-flow-crm-contact-save-and-vcard-exporttechnical-description

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.