CVE-2026-33628

Summary

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.

Affected Software

VendorProductVersion RangeStatus
invoiceninjainvoiceninja< 5.13.4affected

Weaknesses

  • CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-116: CWE-116: Improper Encoding or Escaping of Output
  • CWE-184: CWE-184: Incomplete List of Disallowed Inputs

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References