---
id: CVE-2026-58450
title: >-
  Invoice Ninja 5.13.26 - Open Redirect in Client Portal Login via intended
  Parameter
summary: >-
  Invoice Ninja through 5.13.26 contains an open redirect vulnerability in the
  client portal login that allows unauthenticated attackers to redirect
  authenticated victims to attacker-controlled external URLs by injecting a
  malicious value …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-601
vendor: invoiceninja
product: invoiceninja
affected:
  - invoiceninja <= 5.13.26
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-01T13:48:42.421479Z'
exploitAvailable: true
published: '2026-06-30'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:07:02.962Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-58450'
references:
  - url: 'https://github.com/invoiceninja/invoiceninja/issues/12039'
    label: Researcher Disclosure
  - url: >-
      https://www.vulncheck.com/advisories/invoice-ninja-open-redirect-in-client-portal-login-via-intended-parameter
tags:
  - cve.org
  - exploit-available
epss: 0.00293
epssPercentile: 0.22066
ingestedAt: '2026-11-08T14:51:22.293Z'
---

## Overview

Invoice Ninja through 5.13.26 contains an open redirect vulnerability in the client portal login that allows unauthenticated attackers to redirect authenticated victims to attacker-controlled external URLs by injecting a malicious value into the intended query parameter. Attackers can craft a client login link with an external URL in the intended parameter, which is stored in the session without host validation and emitted verbatim via a bare redirect in the ContactLoginController authenticated() handler after the victim completes a legitimate login, enabling phishing attacks.

## Affected

- `invoiceninja <= 5.13.26`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.