Usermin 0.980 through 1.x before 1.660 allows uconfig_save.cgi sig_file_free remote code execution because it uses the two argument (not three argument) form of Perl open.
Cross-site scripting (XSS) vulnerability in Usermin before 1.600 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: this might overlap CVE-2014-3924.
Cross-site scripting (XSS) vulnerability in Webmin before 1.500 and Usermin before 1.430 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in pam_login.cgi in Webmin before 1.350 and Usermin before 1.280 allow remote attackers to inject arbitrary web script or HTML via the (1) cid, (2) message, or (3) question parameter. NOTE: some of these details are obtained from third party information.