/usr/share/kde4/apps/kate/plugins/ is in kate-data 4:4.8.2-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/kate/plugins/filetree/
/usr/share/kde4/apps/kate/plugins/filetree/ui.rc
/usr/share/kde4/apps/kate/plugins/kate_kttsd/
/usr/share/kde4/apps/kate/plugins/kate_kttsd/ui.rc
/usr/share/kde4/apps/kate/plugins/katebuild/
/usr/share/kde4/apps/kate/plugins/katebuild/ui.rc
/usr/share/kde4/apps/kate/plugins/katectags/
/usr/share/kde4/apps/kate/plugins/katectags/ui.rc
/usr/share/kde4/apps/kate/plugins/katefiletemplates/
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/cppgpl.cpp.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/cppgpl.hh.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/cpplgpl.cpp.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/cpplgpl.hh.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/docbookchapter.xml.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/html.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/templates/language.xml.katetemplate
/usr/share/kde4/apps/kate/plugins/katefiletemplates/ui.rc
/usr/share/kde4/apps/kate/plugins/kategdb/
/usr/share/kde4/apps/kate/plugins/kategdb/ui.rc
/usr/share/kde4/apps/kate/plugins/katekonsole/
/usr/share/kde4/apps/kate/plugins/katekonsole/ui.rc
/usr/share/kde4/apps/kate/plugins/katemailfiles/
/usr/share/kde4/apps/kate/plugins/katemailfiles/ui.rc
/usr/share/kde4/apps/kate/plugins/kateopenheader/
/usr/share/kde4/apps/kate/plugins/kateopenheader/ui.rc
/usr/share/kde4/apps/kate/plugins/katequickdocumentswitcher/
/usr/share/kde4/apps/kate/plugins/katequickdocumentswitcher/ui.rc
/usr/share/kde4/apps/kate/plugins/katesearch/
/usr/share/kde4/apps/kate/plugins/katesearch/ui.rc
/usr/share/kde4/apps/kate/plugins/katesnippets_tng/
/usr/share/kde4/apps/kate/plugins/katesnippets_tng/ui.rc
/usr/share/kde4/apps/kate/plugins/katesql/
/usr/share/kde4/apps/kate/plugins/katesql/ui.rc
/usr/share/kde4/apps/kate/plugins/katesymbolviewer/
/usr/share/kde4/apps/kate/plugins/katesymbolviewer/ui.rc
/usr/share/kde4/apps/kate/plugins/katetabbarextension/
/usr/share/kde4/apps/kate/plugins/katetabbarextension/ui.rc
/usr/share/kde4/apps/kate/plugins/katetabify/
/usr/share/kde4/apps/kate/plugins/katetabify/ui.rc
/usr/share/kde4/apps/kate/plugins/katetextfilter/
/usr/share/kde4/apps/kate/plugins/katetextfilter/ui.rc
/usr/share/kde4/apps/kate/plugins/katexmlcheck/
/usr/share/kde4/apps/kate/plugins/katexmlcheck/ui.rc
/usr/share/kde4/apps/kate/plugins/katexmltools/
/usr/share/kde4/apps/kate/plugins/katexmltools/ui.rc