CVE-2025-43761 Liferay Portal Reflected XSS in CKeditor 4.21.0 endpoint

Medium 6.9 Published Updated

Remote unauthenticated attackers can inject JavaScript via reflected XSS in the CKEditor samples, potentially leading to session hijacking or malicious actions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-43761?

CVE-2025-43761 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 22 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-79

Which versions are affected by CVE-2025-43761?

6 open source packages ship an affected version, including com.liferay:com.liferay.frontend.editor.ckeditor.web, com.liferay:com.liferay.frontend.js.dependencies.web and liferay-ckeditor. It affects 2 products.

PackageAffectedFixed in
com.liferay:com.liferay.frontend.editor.ckeditor.web MavenAll versions5.0.107
com.liferay:com.liferay.frontend.editor.ckeditor.web MavenAll versions5.0.107
com.liferay:com.liferay.frontend.js.dependencies.web MavenAll versions1.0.25
com.liferay:com.liferay.frontend.js.dependencies.web MavenAll versions1.0.25
liferay-ckeditor npmAll versions4.21.0-liferay.10
liferay-ckeditor npmAll versions4.21.0-liferay.10

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2025-43761?

Upgrade com.liferay:com.liferay.frontend.editor.ckeditor.web to 5.0.107 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-43761 being exploited?

There is no known exploitation of CVE-2025-43761 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-3h7r-4xxj-3mfm.

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