Cross-site request forgery (CSRF) vulnerability in index.php in Simple Machines Forum (SMF) 1.0 before 1.0.15 and 1.1 before 1.1.7 allows remote attackers to hijack the authentication of admins for requests that install packages via the package parameter in an install2 action.
https://www.exploit-db.com/exploits/6993
https://exchange.xforce.ibmcloud.com/vulnerabilities/46343
http://www.simplemachines.org/community/index.php?topic=272861.0