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Vulnerabilities

Vulnerability · CVE-2026-33742

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

Published Mar 26, 2026 · catalog updated Jun 17, 2026 · invoice ninja

Check if you run it

No confirmed exploitation is on record for CVE-2026-33742. EPSS is 0.25%. Act only if a listed version of invoice ninja is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.25%
Remediation
Advisory link
Affected products
cpe invoiceninja/invoice ninja

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 before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding to sanitize Markdown output.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe invoiceninja/invoice ninjaversion unspecified

How to fix CVE-2026-33742

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33742. EPSS is 0.25%. Act only if a listed version of invoice ninja is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.25%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 26, 2026 · NIST NVD

    Detected

    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 before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding to sanitize Markdown output.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding to sanitize Markdown output.

Sources

  • CVE.orgVulnerability recordCVE-2026-33742

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33742

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33742

    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 befo

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.