A vulnerability was found in dompdf up to 1.x and classified as problematic. Affected by this issue is an unknown functionality. Upgrading to version 2.0.0 eliminates this vulnerability. Applying the patch 99aeec1efec9213e87098d42eb09439e7ee0bb6a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.