CVE-2026-83744

invoiceninja Invoice Ninja invoices Endpoint Purify.php isHostSafe server-side request forgery

MEDIUM
4.3
CVSS Score
Published: September 1, 2026 at 05:00 AM UTC
Updated: September 2, 2026 at 06:21 PM UTC
1 product affected across 1 vendorInvoice Ninja

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/397500
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/397500/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-83744
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/880055

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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