CVE-2019-20891 WooCommerce Cross-Site Request Forgery (CSRF)

High 8.8 Published 19 Jun 2020 Updated 5 Aug 2024

Attackers can inject malicious scripts via CSV imports, leading to stored XSS and potential account takeover in WooCommerce installations.

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-2019-20891?

CVE-2019-20891 is a high-severity cross-site scripting vulnerability in n/a, published on 19 Jun 2020. 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

WooCommerce before 3.6.5, when it handles CSV imports of products, has a cross-site request forgery (CSRF) issue with resultant stored cross-site scripting (XSS) via includes/admin/importers/class-wc-product-csv-importer-controller.php.

Weakness: CWE-352

Which versions are affected by CVE-2019-20891?

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

Package	Affected	Fixed in
`woocommerce/woocommerce` Packagist	All versions	`3.6.5`
`woocommerce/woocommerce` Packagist	All versions	`3.6.5`

Products include Woocommerce Woocommerce.

How do I fix CVE-2019-20891?

Upgrade woocommerce/woocommerce to 3.6.5 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-2019-20891 being exploited?

There is no known exploitation of CVE-2019-20891 in the wild and no public exploit code.

Sources

Also known as GHSA-rcmf-88p4-9wrg.