CVE-2026-71233 InvoiceNinja - Stored XSS via Invoice/Quote Terms Field
Attackers can inject malicious scripts into invoice terms, leading to session hijacking or code execution in the client portal.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-71233?
CVE-2026-71233 is a high-severity cross-site scripting vulnerability in invoiceninja, published on 5 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
InvoiceNinja v5-stable renders an invoice or quote's "terms" field in the client portal using Laravel Blade's raw output directive {!! ->terms !!} (resources/views/portal/ninja2020/invoices/includes/terms.blade.php) with no HTML sanitization.
Weakness: CWE-79
Which versions are affected by CVE-2026-71233?
How do I fix CVE-2026-71233?
No fix has been published for CVE-2026-71233 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-71233 being exploited?
There is no known exploitation of CVE-2026-71233 in the wild and no public exploit code.
Sources
Also known as GHSA-84j5-x242-f7h8.