---
id: CVE-2026-55381
title: >-
  InvoiceShelf is an open-source web & mobile app that helps track expenses,
  payments and create professional invoices and estimates
summary: >-
  InvoiceShelf is an open-source web & mobile app that helps track expenses,
  payments and create professional invoices and estimates. Prior to version
  2.4.0, POST /api/v1/estimates/{estimate}/convert-to-invoice in
  ConvertEstimateController…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-639
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:17:48.057'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55381'
references:
  - url: >-
      https://github.com/InvoiceShelf/InvoiceShelf/commit/e432e4e62f5aa52238e3ff3fc37a0c78588eec47
    label: security-advisories@github.com
  - url: 'https://github.com/InvoiceShelf/InvoiceShelf/pull/661'
    label: security-advisories@github.com
  - url: 'https://github.com/InvoiceShelf/InvoiceShelf/releases/tag/2.4.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-j2vg-rxqr-5vc9
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-14T20:53:12.378Z'
vendor: InvoiceShelf
product: InvoiceShelf
affected:
  - InvoiceShelf < 2.4.0
---

## Overview

InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.0, POST /api/v1/estimates/{estimate}/convert-to-invoice in ConvertEstimateController authorizes only the caller's create-invoice ability and does not authorize access to the route-bound Estimate. Because route-model binding can resolve an estimate from any company, an authenticated user with create-invoice ability can copy another company's line items, prices, totals, taxes, notes, currency, and customer data into an invoice in the attacker's company. The victim company's configured conversion action reaches checkForEstimateConvertAction and can also change or delete the original estimate. This issue is fixed in version 2.4.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.