CVE-2025-43802 Liferay Stored Cross-site Scripting vulnerability

Medium 4.8 Published Updated

Remote attackers can inject arbitrary web script or HTML via the externalReferenceCode parameter in Liferay Portal's custom object API endpoint.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-43802?

CVE-2025-43802 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 15 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/<object-name> API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inject arbitrary web script or HTML via the externalReferenceCode parameter.

Weakness: CWE-79

Which versions are affected by CVE-2025-43802?

2 open source packages ship an affected version, including com.liferay.workspace:com.liferay.ticket.workspace. It affects 2 products.

PackageAffectedFixed in
com.liferay.workspace:com.liferay.ticket.workspace MavenAll versions20240122.0632
com.liferay.workspace:com.liferay.ticket.workspace MavenAll versions20240122.0632

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2025-43802?

Upgrade com.liferay.workspace:com.liferay.ticket.workspace to 20240122.0632 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-2025-43802 being exploited?

There is no known exploitation of CVE-2025-43802 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-vg6h-g5mr-9hgv.

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