We recently came across an issue associated with the plugin ThemeGrill Demo Importer wherein the already designed word press sites were all of a sudden wiped out to the default ones due to a bug. The bug is present in versions of the ThemeGrill Demo Importer plugin 1.3.4 up to 1.6.1. It is recommended to update the plugin to the latest version i.e. 1.6.2 that does not trigger Unauthenticated user access to wordpress.
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