/usr/lib/libkxmlrpcclient.so.4 is in libkxmlrpcclient4 4:4.14.10-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libkxmlrpcclient.so.4.14.11
/usr/lib/libkxmlrpcclient.so.4.14.11