Unknown vulnerability in (1) Webmin and (2) Usermin before 1.200 causes Webmin to change permissions and ownership of configuration files, with unknown impact.
miniserv.pl in (1) Webmin before 1.070 and (2) Usermin before 1.000 does not properly handle metacharacters such as line feeds and carriage returns (CRLF) in Base-64 encoded strings during Basic authentication, which allows remote attackers to spoof a session ID and gain root privileges.
The Printer Administration module for Webmin 0.990 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the printer name.
An issue was discovered in Webmin <=1.920. The parameter old in password_change.cgi contains a command injection vulnerability.