Cross-site scripting (XSS) vulnerability in the My Calendar plugin before 1.10.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO.
https://exchange.xforce.ibmcloud.com/vulnerabilities/72454
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-6377
http://www.securityfocus.com/bid/51539
http://wordpress.org/extend/plugins/my-calendar/changelog/
http://secunia.com/advisories/47579
http://plugins.trac.wordpress.org/changeset/490070/my-calendar