Cross-site request forgery (CSRF) vulnerability in the del_block function in modules/Admin/block.php in Nuked-Klan 1.7.5 and earlier and 1.7 SP4.2 allows remote attackers to delete arbitrary "blocks" via a link with a modified bid parameter in a del_block op on the block page in index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27490
http://www.vupen.com/english/advisories/2006/2615
http://www.securityfocus.com/archive/1/438703