CVE-2021-29045 Liferay Portal and Liferay DXP Vulnerable to Cross-Site Scripting (XSS) via the Redirect's Admin Page

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML via the Redirect module's administration page in 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-2021-29045?

CVE-2021-29045 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 Redirect module's redirection administration page in Liferay Portal 7.3.2 through 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_redirect_web_internal_portlet_RedirectPortlet_destinationURL parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-29045?

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 MavenFrom 7.3.2 to 7.3.5None
com.liferay.portal:release.portal.bom MavenFrom 7.3.2 to 7.3.5None

Products include Liferay Dxp, Liferay Liferay Portal.

How do I fix CVE-2021-29045?

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-2021-29045 being exploited?

There is no known exploitation of CVE-2021-29045 in the wild and no public exploit code.

All Liferay Liferay Portal vulnerabilities

Sources

Also known as GHSA-qcv4-gv43-498v.

Is CVE-2021-29045 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free