CVE-2021-38267 Liferay Portal and Liferay DXP vulnerable to cross-site scripting (XSS) in edit blog entry page

Medium 5.4 Published Updated

Remote attackers can inject arbitrary web script or HTML into the Blogs module's edit page, potentially compromising user sessions.

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-2021-38267?

CVE-2021-38267 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 2 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in the Blogs module's edit blog entry page in Liferay Portal 7.3.2 through 7.3.6, and Liferay DXP 7.3 before fix pack 2 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_blogs_web_portlet_BlogsAdminPortlet_title and _com_liferay_blogs_web_portlet_BlogsAdminPortlet_subtitle parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-38267?

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

PackageAffectedFixed in
com.liferay.portal:release.dxp.bom MavenFrom 7.3.07.3.10.fp2
com.liferay.portal:release.dxp.bom MavenFrom 7.3.07.3.10.fp2
liferay BitnamiAll versions to 7.3.07.3.0
com.liferay.portal:release.portal.bom MavenFrom 7.3.27.3.7-ga8
com.liferay.portal:release.portal.bom MavenFrom 7.3.27.3.7-ga8
com.liferay:com.liferay.frontend.js.web MavenAll versions5.0.0
1 more packages
com.liferay:com.liferay.frontend.js.web MavenAll versions5.0.0

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2021-38267?

Upgrade com.liferay.portal:release.dxp.bom to 7.3.10.fp2 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-2021-38267 being exploited?

There is no known exploitation of CVE-2021-38267 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as BIT-liferay-2021-38267, GHSA-r39x-3qq4-gxmr.

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