CVE-2021-37710 Cross-Site Scripting via SVG media files

What is CVE-2021-37710?

CVE-2021-37710 is a high-severity cross-site scripting vulnerability in Shopware Shopware, published on 16 Aug 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 an open source eCommerce platform. Versions prior to 6.4.3.1 contain a Cross-Site Scripting vulnerability via SVG media files. Version 6.4.3.1 contains a patch. As workarounds for older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin.

Weakness: CWE-79

Which versions are affected by CVE-2021-37710?

4 open source packages ship an affected version, including shopware/core and shopware/platform. It affects 1 product.

Products include Shopware Shopware.

How do I fix CVE-2021-37710?

Upgrade shopware/core to 6.4.3.1 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-2021-37710 being exploited?

There is no known exploitation of CVE-2021-37710 in the wild and no public exploit code.

Other vulnerabilities in Shopware Shopware

• CVE-2023-22731 Improper Control of Generation of Code in Twig rendered views in shopware Critical 10.0
• CVE-2016-3109 Shopware RCE Vulnerability Critical 9.8
• CVE-2024-22406 Blind SQL-injection in DAL aggregations in Shopware Critical 9.3
• CVE-2021-32711 Leak of information via Store-API Critical 9.1
• CVE-2026-31887 Shopware unauthenticated data extraction possible through store-api.order endpoint High 8.9

All Shopware Shopware vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fc38-mxwr-pfhx.