CVE-2021-24201 Elementor < 3.1.2 - Authenticated Stored Cross-Site Scripting (XSS) in Column Element

Medium 5.4 Published Updated

Authenticated attackers can inject JavaScript via the html_tag parameter in the Column element, leading to stored XSS when pages are viewed.

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
None listed

What is CVE-2021-24201?

CVE-2021-24201 is a medium-severity cross-site scripting vulnerability in Unknown Elementor Website Builder, published on 5 Apr 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In the Elementor Website Builder WordPress plugin before 3.1.4, the column element (includes/elements/column.php) accepts an ‘html_tag’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request containing JavaScript in the ‘html_tag’ parameter, which is not filtered and is output without escaping. This JavaScript will then be executed when the saved page is viewed or previewed.

Weakness: CWE-79

Which versions are affected by CVE-2021-24201?

It affects 1 product.

Products include Elementor Website Builder.

How do I fix CVE-2021-24201?

No fix has been published for CVE-2021-24201 yet. Limit exposure of the affected software until one is available.

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-2021-24201 being exploited?

There is no known exploitation of CVE-2021-24201 in the wild and no public exploit code.

Sources

Also known as GHSA-vf33-c85r-62wf.

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