CVE-2026-33742

Name: CVE-2026-33742
Creator: NVD / NIST
Published: 2026-03-26T21:17:08.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2026-33742 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.20%

10.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Invoiceninja	Invoice Ninja	< 5.13.4

References

https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4Release Notes
https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mhExploit, Vendor Advisory
https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mhExploit, Vendor Advisory

Timeline

Published: Mar 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33742?

How severe is CVE-2026-33742?

CVE-2026-33742 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33742?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33742?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST