Liferay Portal has stored cross-site scripting (XSS) vulnerability
Date: 2025-09
Affected: maven/com.liferay.portal:com.liferay.portal.impl
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-43794
CWE: CWE-79

A stored cross-site scripting (XSS) vulnerability in Liferay Portal 7.4.0 through 7.4.3.111, and older unsupported versions, and Liferay DXP 2023.Q4.0, 2023.Q3.1 through 2023.Q3.4, 7.4 GA through update 92, 7.3 GA through update 35, and older unsupported versions allows remote authenticated attackers with the instance administrator role to inject arbitrary web script or HTML into all pages via a crafted payload injected into the Instance Configuration's (1) CDN Host HTTP text field or (2) CDN Host HTTPS text field.


Mitigations:

Architectural layers (MAESTRO):