Are you guys sure you mounted /lampp?
XAMPP Volumes
If not, please do so.
Then open file at
lampp/etc/extra/httpd-xampp.conf
and edit it at line 20 and add a new one at 42 like this:
# since XAMPP 1.4.3
<Directory "/opt/lampp/phpmyadmin">
AllowOverride AuthConfig Limit
Require all granted
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
and
# <Location /time>
SetHandler modperl
PerlResponseHandler Apache::CurrentTime
Require all granted
Start XAMPP again (mounting of lampp not necessary anymore) and you are good to go.