CVE-2026-59236

Authorization bypass in Prospero Flow CRM Excel import allows cross-tenant record injection

MEDIUM
6.9
CVSS Score
Published: July 15, 2026 at 11:09 AM UTC
Updated: October 24, 2026 at 09:10 PM UTC
1 product affected across 1 vendorProspero Flow CRM

Using Prospero Flow CRM by Roskus?

Get instant alerts when new vulnerabilities affect Prospero Flow CRM - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.9
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Authorization Bypass Through User-Controlled Key (CWE-639) in the Excel import handlers (CustomerImport, LeadImport, ProductImport) in Roskus Prospero Flow CRM before 5.14.0 allows a remote, authenticated user of any role or company to create customer, lead, and product records inside another company's tenant via a spreadsheet whose company_id column points to the victim tenant, uploaded to POST /customer/import/excel/save, which maps company_id directly from the file and performs no check that it matches the authenticated user's company.

Affected

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

1.0.0 ≤ v < 5.14.01.0.0
Affected range stops below 5.14.0, 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 exploitAutomatablePartial impact

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

CVSS

6.9MEDIUMSecur0
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card