CVE-2021-24323 Woocommerce < 5.2.0 - Authenticated Stored Cross-Site Scripting (XSS)

Medium 4.8 Published Updated

Authenticated administrators can inject malicious scripts via tax class fields in WooCommerce when taxes are enabled, leading to stored XSS.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2021-24323?

CVE-2021-24323 is a medium-severity cross-site scripting vulnerability in Automattic WooCommerce, published on 17 May 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

When taxes are enabled, the "Additional tax classes" field was not properly sanitised or escaped before being output back in the admin dashboard, allowing high privilege users such as admin to use XSS payloads even when the unfiltered_html is disabled

Weakness: CWE-79

Which versions are affected by CVE-2021-24323?

2 open source packages ship an affected version, including woocommerce/woocommerce. It affects 1 product.

PackageAffectedFixed in
woocommerce/woocommerce PackagistAll versions5.2.0
woocommerce/woocommerce PackagistAll versions5.2.0

Products include Woocommerce Woocommerce.

How do I fix CVE-2021-24323?

Upgrade woocommerce/woocommerce to 5.2.0 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-2021-24323 being exploited?

There is no known exploitation of CVE-2021-24323 in the wild and no public exploit code.

Sources

Also known as GHSA-mp46-7x6q-f28m.

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