HIGH 7.1 NVD
CVE-2026-82029
Invoice Ninja before 5.13.28 contains a broken access control vulnerability that allows authenticated vendor-portal contacts to access documents belonging to ot
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 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.
References
- https://github.com/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81
- https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.28
- https://www.vulncheck.com/advisories/invoice-ninja-broken-access-control-via-vendor-portal
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-11-04 via NVD.
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