The maketemp.pl script in Usermin 1.070 and 1.080 allows local users to overwrite arbitrary files at install time via a symlink attack on the /tmp/.usermin directory.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17299
http://www.webmin.com/uchanges-1.089.html
http://www.securityfocus.com/bid/11153