CVE-2026-33742
March 26, 2026
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 "purify::clean()" before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding "purify::clean()" to sanitize Markdown output.
Affected Packages
https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4https://github.com/invoiceninja/invoiceninja.git (GITHUB):
Affected version(s) >=v1.0.2 <v5.13.4Fix Suggestion:
Update to version v5.13.4Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.03
