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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-33742

Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes

Description

Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Product notes fields in Invoice Ninja v5.13.0 allow raw HTML via Markdown rendering, enabling stored XSS. The Markdown parser output was not sanitized with `purify::clean()` before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding `purify::clean()` to sanitize Markdown output.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

invoiceninja invoiceninja

  • < 5.13.4affected

References