Moderate severityNVD Advisory· Published Mar 26, 2026· Updated Mar 27, 2026
Invoice Ninja Denylist Bypass may Lead to Stored XSS via Invoice Line Items
CVE-2026-33628
Description
Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Invoice line item descriptions in Invoice Ninja v5.13.0 bypass the XSS denylist filter, allowing stored XSS payloads to execute when invoices are rendered in the PDF preview or client portal. The line item description field was not passed through purify::clean() before rendering. This is fixed in v5.13.4 by the vendor by adding purify::clean() to sanitize line item descriptions.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
invoiceninja/invoiceninjaPackagist | < 5.13.4 | 5.13.4 |
Affected products
2- Range: < 5.13.4
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-98wm-cxpw-847pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33628ghsaADVISORY
- github.com/invoiceninja/invoiceninja/commit/b81a3fc302573fc4a53d61e8537dd19154ce1091ghsax_refsource_MISCWEB
- github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4ghsax_refsource_MISCWEB
- github.com/invoiceninja/invoiceninja/security/advisories/GHSA-98wm-cxpw-847pghsax_refsource_CONFIRMWEB
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