CVE-2026-55610— InvoiceShelf has cross-company user read/update IDOR that enables cross-tenant account takeover
Quick assessment
Affected
InvoiceShelf InvoiceShelf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 over
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I. Basic Information for CVE-2026-55610
Vulnerability Information
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Vulnerability Title
InvoiceShelf has cross-company user read/update IDOR that enables cross-tenant account takeover
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| InvoiceShelf | InvoiceShelf | < 2.4.1 | - |
|
II. Public POCs for CVE-2026-55610
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-55610 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-55610
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