CVE-2021-33332 Liferay Portal and Liferay DXP Vulnerable to Cross-Site Scripting (XSS)

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML via a specific parameter in the Portlet Configuration module of Liferay Portal.

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

What is CVE-2021-33332?

CVE-2021-33332 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in the Portlet Configuration module in Liferay Portal 7.1.0 through 7.3.2, and Liferay DXP 7.1 before fix pack 19, and 7.2 before fix pack 7, allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_portlet_configuration_css_web_portlet_PortletConfigurationCSSPortlet_portletResource parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-33332?

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

PackageAffectedFixed in
com.liferay.portal:release.dxp.bom MavenFrom 7.1.07.1.10.fp19
com.liferay.portal:release.dxp.bom MavenFrom 7.1.07.1.10.fp19
com.liferay.portal:release.dxp.bom MavenFrom 7.2.07.2.10.fp7
com.liferay.portal:release.dxp.bom MavenFrom 7.2.07.2.10.fp7
com.liferay.portal:release.portal.bom MavenFrom 7.1.0 to 7.3.2None
com.liferay.portal:release.portal.bom MavenFrom 7.1.0 to 7.3.2None

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2021-33332?

Upgrade com.liferay.portal:release.dxp.bom to a fixed version for your release line: 7.1.10.fp19 or 7.2.10.fp7.

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-2021-33332 being exploited?

There is no known exploitation of CVE-2021-33332 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-9995-qvcg-x7g6.

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