Read the docs
TI-2026-15840 Aliases CVE-2026-19433GHSA-8666-8wpq-7c9q

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

Priority MEDIUM 40CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00439 38th percentileScored 2026-11-07
Fix Fixed Prospero Flow CRM (Roskus): 5.4.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
RoskusProspero Flow CRMbefore 5.4.85.4.8Patch availableCNA
  • Prospero Flow CRM VendorRoskus Affected before 5.4.8 Fixed in 5.4.8 Patch available CNA

Remediation

  • Fix · CNA Prospero Flow CRM (Roskus) Fixed in 5.4.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19433
  2. 2026-10-03 Alias added: GHSA-8666-8wpq-7c9q

References

Patch 1

Other 2

  • TI-2026-54500 IDOR and missing authorization in Prospero Flow CRM supplier API allows cross-tenant read and modification CVSS 4.0CRITICAL 9.3
  • TI-2026-16110 Use of hard-coded credentials in Prospero Flow CRM employee onboarding CVSS 4.0CRITICAL 9.3
  • TI-2026-42380 Stored XSS in Prospero Flow CRM email body allows administrator account takeover CVSS 4.0HIGH 8.6
  • TI-2026-42376 Missing authorization in Prospero Flow CRM allows low-privileged users to read all bank accounts CVSS 4.0HIGH 8.7
  • TI-2026-54153 IDOR and missing authorization in the Prospero Flow CRM transaction API allow cross-tenant reading of financial records CVSS 4.0HIGH 8.7
  • TI-2026-42374 Missing Authorization in Prospero Flow CRM permission save endpoint allows privilege escalation CVSS 4.0HIGH 8.7
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences