Unknown vulnerability in (1) Webmin and (2) Usermin before 1.200 causes Webmin to change permissions and ownership of configuration files, with unknown impact.
https://exchange.xforce.ibmcloud.com/vulnerabilities/20607
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-1180
http://www.webmin.com/uchanges.html