CVE-2026-33628CWE-116CWE-184CWE-79

Invoice Ninja Denylist Bypass may Lead to Stored XSS via Invoice Line Items

Medium · published March 26, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
23.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00316 · 23.3th percentile
Weaknesses
CWE-116 · Improper Encoding or Escaping of Output; CWE-184 · Incomplete List of Disallowed Inputs; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-26T20:48Z
EPSS history
Timeline
  • 26 MAR 20:48Z
    Invoice Ninja Denylist Bypass may Lead to Stored XSS via Invoice Line Items
    cvelistv5