Liferay Portal Vulnerable to Reflected XSS via the selectedLanguageId Parameter
Date: 2025-10
Affected: maven/com.liferay.portal:release.portal.bom
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-62264
CWE: CWE-79
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Reflected cross-site scripting (XSS) vulnerability in Languauge Override in Liferay Portal 7.4.3.8 through 7.4.3.111, and Liferay DXP 2023.Q4.0 through 2023.Q4.10, 2023.Q3.1 through 2023.Q3.10, and 7.4 update 4 through update 92 allows remote attackers to inject arbitrary web script or HTML via the `_com_liferay_portal_language_override_web_internal_portlet_PLOPortlet_selectedLanguageId` parameter.


Mitigations:

Architectural layers (MAESTRO):