CVE-2026-33628
Invoice Ninja Denylist Bypass may Lead to Stored XSS via Invoice Line Items
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.
INFO
Published Date :
March 26, 2026, 9:17 p.m.
Last Modified :
March 30, 2026, 5:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Invoice Ninja to version 5.13.4.
- Ensure line item descriptions are sanitized before rendering.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33628.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33628 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33628
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33628 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33628 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 30, 2026
Action Type Old Value New Value Added CWE CWE-79 Added CPE Configuration OR *cpe:2.3:a:invoiceninja:invoice_ninja:*:*:*:*:*:*:*:* versions up to (excluding) 5.13.4 Added Reference Type GitHub, Inc.: https://github.com/invoiceninja/invoiceninja/commit/b81a3fc302573fc4a53d61e8537dd19154ce1091 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-98wm-cxpw-847p Types: Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-98wm-cxpw-847p Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 27, 2026
Action Type Old Value New Value Added Reference https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-98wm-cxpw-847p -
New CVE Received by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added CWE CWE-116 Added CWE CWE-184 Added Reference https://github.com/invoiceninja/invoiceninja/commit/b81a3fc302573fc4a53d61e8537dd19154ce1091 Added Reference https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4 Added Reference https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-98wm-cxpw-847p