http://packetstormsecurity.com/files/153145/Shopware-5.5.6-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2019/Jun/32
https://www.netsparker.com/web-applications-advisories/ns-19-004-cross-site-scripting-in-shopware/
https://www.shopware.com/en/changelog/#5-5-8
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