{"id":"CVE-2026-55610","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 2.4.1, in InvoiceShelf's multi-company installations, any user who is an Owner of one co…","severity":"high","cvss":8.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","cwe":["CWE-639"],"vendor":"InvoiceShelf","product":"InvoiceShelf","affected":["InvoiceShelf < 2.4.1"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T20:17:11.580","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55610","references":[{"url":"https://github.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-vgx6-6cqr-m8qr","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-23T18:14:01.010220Z"},"ingestedAt":"2026-09-23T15:26:23.420Z","slug":"CVE-2026-55610","body":"## Overview\n\nInvoiceShelf 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}