Cross-site scripting (XSS) vulnerability in the preview form in Stephen Ostermiller Contact Form before 2.00.02 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors that contain an apostrophe.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34962
http://www.vupen.com/english/advisories/2007/2333
http://www.securityfocus.com/bid/24559
http://www.attrition.org/pipermail/vim/2007-June/001669.html
http://secunia.com/advisories/25812