CVE-2021-29046 Liferay Portal and Liferay DXP Vulnerable to Cross-Site Scripting (XSS) via Asset Module Parameter

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML into the Asset module's category selector, potentially compromising user sessions.

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-2021-29046?

CVE-2021-29046 is a medium-severity cross-site scripting vulnerability in Liferay Liferay Portal, published on 17 May 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 Asset module's category selector input field in Liferay Portal 7.3.5 and Liferay DXP 7.3 before fix pack 1, allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_asset_categories_admin_web_portlet_AssetCategoriesAdminPortlet_title parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-29046?

4 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 7.3.10.fp07.3.10.fp1
com.liferay.portal:release.dxp.bom MavenFrom 7.3.10.fp07.3.10.fp1
com.liferay.portal:release.portal.bom MavenAll versionsNone
com.liferay.portal:release.portal.bom MavenAll versionsNone

Products include Liferay Dxp, Liferay Liferay Portal.

How do I fix CVE-2021-29046?

Upgrade com.liferay.portal:release.dxp.bom to 7.3.10.fp1 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-2021-29046 being exploited?

There is no known exploitation of CVE-2021-29046 in the wild and no public exploit code.

All Liferay Liferay Portal vulnerabilities

Sources

Also known as GHSA-9g57-m5vf-qp73.

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