Mahara before 1.0.13, and 1.1.x before 1.1.7, allows remote authenticated institution administrators to reset a site administrator password via unspecified vectors.
http://www.vupen.com/english/advisories/2009/3101
http://www.securityfocus.com/bid/36893
http://www.debian.org/security/2009/dsa-1924
http://secunia.com/advisories/37218
http://secunia.com/advisories/37217
http://mahara.org/interaction/forum/topic.php?id=1169