CVE-2021-44649 Cross-site Scripting in django-cms

Medium 5.4 Published Updated

An attacker can execute arbitrary JavaScript in a user's browser via an unvalidated plugin_type parameter in Django CMS.

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-2021-44649?

CVE-2021-44649 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Jan 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

Django CMS 3.7.3 does not validate the plugin_type parameter while generating error messages for an invalid plugin type, resulting in a Cross Site Scripting (XSS) vulnerability. The vulnerability allows an attacker to execute arbitrary JavaScript code in the web browser of the affected user.

Weakness: CWE-79

Which versions are affected by CVE-2021-44649?

9 open source packages ship an affected version, including django-cms. It affects 1 product.

PackageAffectedFixed in
django-cms PyPIFrom 3.4.03.4.7, 3.5.4, 3.6.1, 3.7.4
django-cms PyPIFrom 3.4.03.4.7
django-cms PyPIFrom 3.4.03.4.7
django-cms PyPIFrom 3.5.03.5.4
django-cms PyPIFrom 3.5.03.5.4
django-cms PyPIFrom 3.6.03.6.1
3 more packages
django-cms PyPIFrom 3.6.03.6.1
django-cms PyPIFrom 3.7.03.7.4
django-cms PyPIFrom 3.7.03.7.4

Products include Django-Cms Django Cms.

How do I fix CVE-2021-44649?

Upgrade django-cms to a fixed version for your release line: 3.4.7, 3.5.4, 3.6.1 or 3.7.4.

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-2021-44649 being exploited?

There is no known exploitation of CVE-2021-44649 in the wild and no public exploit code.

Sources

Also known as GHSA-hx7c-qpfq-xcrp, PYSEC-2022-7.

Is CVE-2021-44649 in your software?

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

Check your SBOMs for free