/usr/share/horde/nag/templates/ is in php-horde-nag 4.2.17-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/horde/nag/templates/.htaccess
/usr/share/horde/nag/templates/alarm/
/usr/share/horde/nag/templates/alarm/mail.html.php
/usr/share/horde/nag/templates/alarm/mail.plain.php
/usr/share/horde/nag/templates/data/
/usr/share/horde/nag/templates/data/export.inc
/usr/share/horde/nag/templates/data/import.inc
/usr/share/horde/nag/templates/javascript_defs.php
/usr/share/horde/nag/templates/list/
/usr/share/horde/nag/templates/list.html.php
/usr/share/horde/nag/templates/list/_task.html.php
/usr/share/horde/nag/templates/list/header.html.php
/usr/share/horde/nag/templates/list/task_headers.html.php
/usr/share/horde/nag/templates/quick.inc
/usr/share/horde/nag/templates/smartmobile/
/usr/share/horde/nag/templates/smartmobile/lists.html.php
/usr/share/horde/nag/templates/smartmobile/main.html.php
/usr/share/horde/nag/templates/smartmobile/taskform.html.php
/usr/share/horde/nag/templates/view/
/usr/share/horde/nag/templates/view/task.inc