Authenticated Stored XSS in Administration
We recommend updating to version 5.7.12. You can get the update to 5.7.12 regularly via the Auto-Updater or directly via the download overview. https://www.shopware.com/de/changelog-sw5/#5-7-12
For older versions you can use the Security Plugin: https://store.shopware.com/en/swag575294366635f/shopware-security-plugin.html
https://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2022