23 Oct 2026 15:48:27 UTC
InvoiceShelf has cross-company user read/update IDOR that enables cross-tenant account takeover
cve-program · CVE-2026-55610 · Published
CVE-2026-55610
InvoiceShelf has cross-company user read/update IDOR that enables cross-tenant account takeover
CVSS 3.1 8.7 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-55610
PublishedInvoiceShelf 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.
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