---
id: CVE-2026-55383
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, InvoiceShelf public customer invoice, estimate, and payment routes use
  an EmailLo…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-285
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:17:48.350'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55383'
references:
  - url: >-
      https://github.com/InvoiceShelf/InvoiceShelf/commit/5839d8385debf379644f55e773639e1c7e673163
    label: security-advisories@github.com
  - url: 'https://github.com/InvoiceShelf/InvoiceShelf/pull/662'
    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-73q7-2953-8gvx
    label: security-advisories@github.com
  - url: >-
      https://github.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-73q7-2953-8gvx
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
ingestedAt: '2026-10-14T20:53:12.378Z'
vendor: InvoiceShelf
product: InvoiceShelf
affected:
  - InvoiceShelf < 2.4.0
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-14T19:43:24.649895Z'
---

## 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, InvoiceShelf public customer invoice, estimate, and payment routes use an EmailLog token's numeric mailable_id without verifying mailable_type, and the JSON handlers do not enforce EmailLog::isExpired. A token issued for one document type can therefore disclose a different company's document when numeric identifiers collide, and an expired token can remain usable on the JSON routes GET /customer/invoices/{email_log:token}, GET /customer/estimates/{email_log:token}, and GET /customer/payments/{email_log:token}. View handlers can also mark a mismatched invoice or estimate as viewed and send a notification. This issue is fixed in version 2.4.0.

## Remediation

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