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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.

PUBLISHED Reserved 2026-03-23 | Published 2026-03-26 | Updated 2026-03-27 | Assigner GitHub_M




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-116: Improper Encoding or Escaping of Output

CWE-184: Incomplete List of Disallowed Inputs

Product status

< 5.13.4
affected

References

github.com/...eninja/security/advisories/GHSA-98wm-cxpw-847p exploit

github.com/...eninja/security/advisories/GHSA-98wm-cxpw-847p

github.com/...ommit/b81a3fc302573fc4a53d61e8537dd19154ce1091

github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4

cve.org (CVE-2026-33628)

nvd.nist.gov (CVE-2026-33628)

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