manage_proj_page.php in Mantis before 1.1.4 allows remote authenticated users to execute arbitrary code via a sort parameter containing PHP sequences, which are processed by create_function within the multi_sort function in core/utility_api.php.
https://www.exploit-db.com/exploits/6768
https://www.exploit-db.com/exploits/44611/
https://exchange.xforce.ibmcloud.com/vulnerabilities/45942
https://bugs.gentoo.org/show_bug.cgi?id=242722
http://www.securityfocus.com/bid/31789
http://www.openwall.com/lists/oss-security/2008/10/19/1
http://www.mantisbt.org/bugs/view.php?id=0009704
http://www.mantisbt.org/bugs/changelog_page.php
http://www.gentoo.org/security/en/glsa/glsa-200812-07.xml
http://securityreason.com/securityalert/4470
http://secunia.com/advisories/32975