#plesk bin settings --set force_separate_cgi_bin_dir=true
3.Set webspace root for domain:#plesk bin site -u example.com -cgi-mode webspace
Additional information#plesk db "select * from misc where param='force_separate_cgi_bin_dir';"
Check domain's parameters:#plesk db "select * from dom_param where param = 'cgi_bin_mode';"