A flaw has been found in CmsEasy up to 7.7.7. Affected is the function savetemp_action in the library /lib/admin/template_admin.php of the component Backend Template Management Page. Executing manipulation of the argument content/tempdata can lead to code injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.