CVE-2025-43740 Liferay Portal has Stored Cross-Site Scripting Vulnerability via Message Boards Feature

Medium 4.6 Published Updated

Remote authenticated attackers can inject JavaScript via message boards, potentially leading to session hijacking or malicious actions.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-43740?

CVE-2025-43740 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 19 Aug 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A Stored cross-site scripting vulnerability in the Liferay Portal 7.4.3.120 through 7.4.3.132, and Liferay DXP 2025.Q2.0 through 2025.Q2.8, 2025.Q1.0 through 2025.Q1.15, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13 and 2024.Q1.9 through 2024.Q1.19 allows an remote authenticated attacker to inject JavaScript through the message boards feature available via the web interface.

Weakness: CWE-79

Which versions are affected by CVE-2025-43740?

2 open source packages ship an affected version, including com.liferay.portal:release.portal.bom. It affects 2 products.

PackageAffectedFixed in
com.liferay.portal:release.portal.bom MavenFrom 7.4.3.120-ga120 to 7.4.3.132-ga23None
com.liferay.portal:release.portal.bom MavenFrom 7.4.3.120-ga120 to 7.4.3.132-ga23None

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2025-43740?

No fix has been published for CVE-2025-43740 yet. Limit exposure of the affected software until one is available.

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-2025-43740 being exploited?

There is no known exploitation of CVE-2025-43740 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-22jp-w3cg-gvmm.

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