/usr/share/perl5/CGI/ is in libcgi-application-plugin-anytemplate-perl 0.18-1+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/CGI/Application/
/usr/share/perl5/CGI/Application/Plugin/
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Base.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/ComponentHandler.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/HTMLTemplate.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/HTMLTemplateExpr.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/HTMLTemplatePluggable.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/Petal.pm
/usr/share/perl5/CGI/Application/Plugin/AnyTemplate/Driver/TemplateToolkit.pm