SSRF in Invoiceninja Invoice Ninja
CVE-2026-83744
A security vulnerability has been detected in invoiceninja Invoice Ninja up to 5.13.26. This vulnerability affects the function Purify::isHostSafe of the file app/Services/Pdf/Purify.php of the component invoices Endpoint. The manipulation of the argument notes leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: SSRF (Server-Side Request Forgery)
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Invoiceninja Invoice Ninja — versions 5.13.0, 5.13.1, 5.13.10
Weakness classification (CWE)
References
- cna@vuldb.com (exploit)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-83744?
- CVE-2026-83744 is a medium-severity vulnerability in Invoiceninja Invoice Ninja, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-09-01.
- How severe is CVE-2026-83744?
- Medium severity. CVSS v3 base score is 4.3 out of 10.