Cross-Site Request Forgery (CSRF) vulnerability in tDiary 2.1.1, and tDiary 2.0.1 and earlier, allows remote attackers to conduct actions as another user, and execute commands on the server, via a URL that is activated by the user.
https://exchange.xforce.ibmcloud.com/vulnerabilities/21735
http://www.securityfocus.com/bid/14500
http://www.debian.org/security/2005/dsa-808
http://sourceforge.net/forum/forum.php?forum_id=482743