CVE-2026-82029

CVSS 7.1 (high) · published 2026-11-04

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.

Weakness: CWE-639, CWE-862

Source: NVD CVE-2026-82029

References

• https://github.com/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81d1
• https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.28
• https://www.vulncheck.com/advisories/invoice-ninja-broken-access-control-via-vendor-portal

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