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CVE-2026-33742

5.4 · MEDIUM

Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel.

Published Mar 26, 2026CWE-79EPSS 0.25%

Overview

CVE-2026-33742 is a medium-severity vulnerability. It was published on March 26, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/invoiceninja/invoiceninja/releases/tag/v5.13.4GitHubgithub.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mhGitHubgithub.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh

How CyberStrike helps

Frequently asked questions

What is CVE-2026-33742?

CVE-2026-33742 is a medium-severity vulnerability. It was published on March 26, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-33742?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-33742?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-33742?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-33742 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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