Liferay Portal Reflected XSS in CKeditor 4.21.0 endpoint
Date: 2025-08
Affected: npm/liferay-ckeditor, maven/com.liferay:com.liferay.frontend.js.dependencies.web, maven/com.liferay:com.liferay.frontend.editor.ckeditor.web
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-43761
CWE: CWE-79

A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.4, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12 and 7.4 GA through update 92 allows an remote non-authenticated attacker to inject JavaScript into the frontend-editor-ckeditor-web/ckeditor/samples/old/ajax.html path


Mitigations:

Architectural layers (MAESTRO):