CVE-2011-0752

The extract function in PHP before 5.2.15 does not prevent use of the EXTR_OVERWRITE parameter to overwrite (1) the GLOBALS superglobal array and (2) the this variable, which allows context-dependent attackers to bypass intended access restrictions by modifying data structures that were not intended to depend on external input, a related issue to CVE-2005-2691 and CVE-2006-3758.

Date published : 2011-02-02

http://www.php.net/ChangeLog-5.php

http://www.php.net/archive/2010.php#id2010-12-10-1