/usr/share/xcache/htdocs/cacher/ is in php5-xcache 3.1.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/xcache/htdocs/cacher/cacher.css
/usr/share/xcache/htdocs/cacher/common.php
/usr/share/xcache/htdocs/cacher/config.default.php
/usr/share/xcache/htdocs/cacher/config.example.php
/usr/share/xcache/htdocs/cacher/edit.php
/usr/share/xcache/htdocs/cacher/edit.tpl.php
/usr/share/xcache/htdocs/cacher/index.php
/usr/share/xcache/htdocs/cacher/lang/
/usr/share/xcache/htdocs/cacher/lang/en.php
/usr/share/xcache/htdocs/cacher/lang/en.po
/usr/share/xcache/htdocs/cacher/lang/zh-simplified.php
/usr/share/xcache/htdocs/cacher/lang/zh-simplified.po
/usr/share/xcache/htdocs/cacher/lang/zh-traditional.php
/usr/share/xcache/htdocs/cacher/lang/zh-traditional.po
/usr/share/xcache/htdocs/cacher/listentries.tpl.php
/usr/share/xcache/htdocs/cacher/mkpassword.php
/usr/share/xcache/htdocs/cacher/sub/
/usr/share/xcache/htdocs/cacher/sub/entrylist.tpl.php
/usr/share/xcache/htdocs/cacher/sub/moduleinfo.tpl.php
/usr/share/xcache/htdocs/cacher/sub/summary.tpl.php
/usr/share/xcache/htdocs/cacher/sub/testcoredump.tpl.php
/usr/share/xcache/htdocs/cacher/summary.tpl.php