Resolve : by-pass stability difficulty allowing for an unauthenticated consumer to have login webpage by environment a random referer string via curl ask for. This scenario can originate from plugins modifying your .htaccess information so as to add or alter regulations, or from an old WordPress MU configuration not up-to-date https://penposh.com/blogs/422295/%E9%9C%80%E8%A6%81%E4%B8%80%E7%AF%87500%E8%AF%8D%E7%9A%84%E8%8B%B1%E8%AF%AD%E4%BD%9C%E6%96%87-%E5%B9%B6%E6%89%93%E7%AE%97%E7%94%A8-WPS-%E6%89%93%E5%BC%80%E6%88%96%E7%BC%96%E8%BE%91