high · CVSS v3 8.7
CVE-2026-55610
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and…
Description
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.1, in InvoiceShelf's multi-company installations, any user who is an Owner of one company can read and overwrite any user account in any other company on the same installation. `GET/PUT /api/v1/users/{user}` resolves the target `User` by global primary key, and `UserPolicy` checks only that the requester owns their own header-company — it never verifies that the target user belongs to that company. This allows cross-tenant disclosure of user data and full account takeover (email/password overwrite + company re-assignment). Version 2.4.1 fixes the issue.
Scores
- Severity
- high
- CVSS v2
- 7.7
- CVSS v3
- 8.7
- CVSS v4
- —
- EPSS
- —