CVE-2025-43769 Overview
CVE-2025-43769 is a stored cross-site scripting (XSS) vulnerability affecting Liferay Portal and Liferay Digital Experience Platform (DXP). The flaw resides in the components tab and allows an authenticated remote attacker to inject arbitrary web script or HTML that is persistently stored and later rendered in the browsers of other users. The issue is tracked under CWE-79 (Improper Neutralization of Input During Web Page Generation).
Affected releases include Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q3.1–2024.Q3.8, 2024.Q2.0–2024.Q2.13, 2024.Q1.1–2024.Q1.12, and 7.4 GA through update 92.
Critical Impact
An authenticated attacker with elevated privileges can persist malicious script into the components tab, enabling session hijacking, credential theft, or actions performed in the context of victim administrators.
Affected Products
- Liferay Portal 7.4.0 through 7.4.3.131
- Liferay DXP 7.4 GA through update 92
- Liferay DXP 2024.Q1.1–2024.Q1.12, 2024.Q2.0–2024.Q2.13, and 2024.Q3.1–2024.Q3.8
Discovery Timeline
- 2025-08-23 - CVE-2025-43769 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-43769
Vulnerability Analysis
The vulnerability is a stored XSS in the components tab of Liferay Portal and DXP. User-supplied input handled by this component is not properly neutralized before being rendered in downstream pages. When an administrator or other user views the affected view, the injected payload executes in their browser session.
Because the payload is stored server-side, exploitation does not require the victim to click a specially crafted link. Any legitimate user visiting the affected view triggers the payload. The impact is limited by the requirement for the attacker to hold high privileges to reach the injection point and by the need for a victim to view the crafted content.
Root Cause
The root cause is improper output encoding of attacker-controlled data rendered by the components tab. Input that should be treated as text is instead interpreted as HTML or JavaScript by the browser. This is a classic CWE-79 failure where sanitization or context-aware escaping is missing at the render layer.
Attack Vector
Exploitation requires network access to the Liferay instance and authenticated access with elevated privileges. The attacker submits a payload containing HTML or JavaScript through the components tab input surface. The payload is stored, then delivered to any user who subsequently loads the affected view, executing script in the victim's origin.
No verified public exploit is available for CVE-2025-43769, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. For technical remediation guidance, consult the Liferay CVE-2025-43769 advisory.
Detection Methods for CVE-2025-43769
Indicators of Compromise
- Unexpected HTML tags, <script> elements, or JavaScript event handlers (onerror, onload, onmouseover) stored in Liferay component configuration fields.
- Outbound browser requests from administrator sessions to unknown external hosts shortly after visiting the components tab.
- Anomalous session activity or administrative actions originating from valid sessions without corresponding user interaction.
Detection Strategies
- Review Liferay audit logs for edits to components by high-privileged users, correlating timestamps with subsequent administrator page loads.
- Inspect stored component content for HTML entities, encoded script tags, or JavaScript URI schemes such as javascript:.
- Deploy Content Security Policy (CSP) reporting to surface blocked inline script execution attempts inside the Liferay administrative UI.
Monitoring Recommendations
- Enable and centralize Liferay application and web server access logs, focusing on POST requests to component configuration endpoints.
- Alert on browser telemetry showing script execution or DOM modifications originating from Liferay administrative paths.
- Monitor privileged account activity for lateral configuration changes across the portal.
How to Mitigate CVE-2025-43769
Immediate Actions Required
- Upgrade Liferay Portal to a release later than 7.4.3.131 and Liferay DXP beyond update 92 or the fixed quarterly release identified in the vendor advisory.
- Restrict privileged access to the components tab to a minimal set of trusted administrators.
- Audit stored component content for injected HTML or script payloads and remove any suspicious entries.
Patch Information
Liferay has published remediation guidance in the official CVE-2025-43769 advisory. Apply the fixed service pack or quarterly release for your deployment track. Customers on DXP subscription tracks should follow their release channel guidance to move to a patched build.
Workarounds
- Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources for the Liferay administrative interface.
- Temporarily revoke component editing privileges from non-essential administrator accounts until patching completes.
- Require multi-factor authentication for all administrative accounts to reduce the risk of privilege abuse leading to injection.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
