{"id":"CVE-2026-82029","title":"Invoice Ninja < 5.13.28 Broken Access Control via Vendor Portal","summary":"Invoice Ninja before 5.13.28 contains a broken access control vulnerability that allows authenticated vendor-portal contacts to access documents belonging to other vendors and clients by exploiting authorization checks that validate only…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-639","CWE-862"],"vendor":"invoiceninja","product":"invoiceninja","affected":["invoiceninja < 5.13.28"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T19:09:52.914547Z"},"published":"2026-11-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T19:10:09.410Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-82029","references":[{"url":"https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.28","label":"Fixed Release Tag"},{"url":"https://github.com/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81d1","label":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/invoice-ninja-broken-access-control-via-vendor-portal","label":"VulnCheck Advisory: Invoice Ninja < 5.13.28 Broken Access Control via Vendor Portal"}],"tags":["cve.org"],"epss":0.00235,"epssPercentile":0.14589,"ingestedAt":"2026-11-05T22:38:31.513Z","slug":"CVE-2026-82029","body":"## Overview\n\nInvoice Ninja before 5.13.28 contains a broken access control vulnerability that allows authenticated vendor-portal contacts to access documents belonging to other vendors and clients by exploiting authorization checks that validate only company_id scope instead of vendor ownership. Attackers can request GET /vendor/documents/{hashid}/download or POST /vendor/documents/download_multiple, enumerating predictable sequential Hashids document identifiers due to a default empty HASH_SALT, to read any invoice PDFs, contracts, payment receipts, and expense attachments within the company.\n\n## Affected\n\n- `invoiceninja < 5.13.28`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}