What’s Vulnerable › Vulnerabilities

CVE-2026-19870: IDOR in Prospero Flow CRM allows cross-tenant payroll disclosure and creation

• Severity: high (CVSS 8.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-14 · updated 2026-09-01
• Weakness: CWE-639

Description

Authorization Bypass Through User-Controlled Key in the payroll module in Roskus Prospero Flow CRM before 5.15.10 allows authenticated users holding the read payroll permission to view the salary and banking details of employees of any other company in the instance, and users holding the create payroll permission to create payroll records attributed to another company's employees, because the listing query is not scoped to the caller's company and the employee identifier is validated for global existence rather than company membership

Affected products

• Roskus Prospero Flow CRM: before 5.15.10 — fixed in 5.15.10

How to fix

Upgrade to a fixed version: Roskus Prospero Flow CRM 5.15.10. Check the vendor advisory for mitigations.

References

• https://github.com/Roskus/prospero-flow-crm/commit/59644f910b7d1aec7d1ac962b0354b3ec209977e
• https://secur0.com/en/cna/cve-list/cve-2026-19870-idor-in-prospero-flow-crm-allows-cross-tenant-payroll-disclosure-and-creation

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