CVE-2021-41188 Authenticated Stored XSS in Administration

Medium 5.7 Published 26 Oct 2021 Updated 4 Aug 2024

Authenticated attackers can inject malicious scripts into the Shopware administration interface, potentially compromising admin accounts.

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-2021-41188?

CVE-2021-41188 is a medium-severity cross-site scripting vulnerability in Shopware Shopware, published on 26 Oct 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

Shopware is open source e-commerce software. Versions prior to 5.7.6 contain a cross-site scripting vulnerability. This issue is patched in version 5.7.6. Two workarounds are available. Using the security plugin or adding a particular following config to the `.htaccess` file will protect against cross-site scripting in this case. There is also a config for those using nginx as a server. The plugin and the configs can be found on the GitHub Security Advisory page for this vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2021-41188?

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

Package	Affected	Fixed in
`shopware/shopware` Packagist	All versions	`5.7.6`
`shopware/shopware` Packagist	All versions	`5.7.6`

Products include Shopware Shopware.

How do I fix CVE-2021-41188?

Upgrade shopware/shopware to 5.7.6 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-2021-41188 being exploited?

There is no known exploitation of CVE-2021-41188 in the wild and no public exploit code.

All Shopware Shopware vulnerabilities

Sources

Also known as GHSA-4p3x-8qw9-24w9.