CVE-2026-19433

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

HIGH
8.6
CVSS Score
Published: August 10, 2026 at 02:04 PM UTC
Updated: October 23, 2026 at 08:10 PM UTC
1 product affected across 1 vendorProspero Flow CRM

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Severity
HIGH8.6
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 5.4.80
Affected range stops below 5.4.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHSecur0
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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