Unspecified vulnerability in Wesnoth 1.2.x before 1.2.8, and 1.3.x before 1.3.12, allows attackers to cause a denial of service (hang) via a "faulty add-on" and possibly execute other commands via unknown vectors related to the turn_cmd option.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38751
http://www.wesnoth.org/forum/viewtopic.php?t=18844
http://www.wesnoth.org/forum/viewtopic.php?p=264289#264289
http://www.vupen.com/english/advisories/2007/4026
http://www.securityfocus.com/bid/26625
http://sourceforge.net/project/shownotes.php?release_id=557098