SYNCK GRAPHICA Mailform Pro CGI 4.1.4 and 4.1.5, when the mailauth module is enabled, does not properly send e-mail messages, which allows remote attackers to execute arbitrary code via unspecified vectors.
http://www.synck.com/blogs/news/weblog_1424791052.html
http://jvndb.jvn.jp/jvndb/JVNDB-2015-000026