CVE-2026-58450: Invoice Ninja 5.13.26 - Open Redirect in Client Portal Login via intended Parameter
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Invoice Ninjato a version that resolves this vulnerability.Fixed in 5.13.26 - Compensating control
Mitigate the phishing risk caused by an open redirect in the Invoice Ninja client portal login by preventing redirects based on an unvalidated external value in the intended query parameter (i.e., add host/target validation so authenticated redirects cannot send users to attacker-controlled external URLs).
Event History
Frequently Asked Questions
What is the severity of CVE-2026-58450?
The severity of CVE-2026-58450 is rated as medium with a score of 4.3.
How do I fix CVE-2026-58450?
To mitigate CVE-2026-58450, validate and sanitize the 'intended' parameter in the client portal login to prevent open redirects.
What are the potential impacts of CVE-2026-58450?
The potential impacts of CVE-2026-58450 include the possibility for attackers to redirect users to malicious external sites.
Who is affected by CVE-2026-58450?
Any user of Invoice Ninja version 5.13.26 and below is potentially affected by CVE-2026-58450.
Is CVE-2026-58450 a zero-day vulnerability?
CVE-2026-58450 is not categorized as a zero-day since it was published on June 30, 2026.