Permissions, Privileges, and Access Controls
PHP 5.2.5 does not enforce (a) open_basedir and (b) safe_mode_exec_dir restrictions for certain functions, which might allow local users to bypass intended access restrictions and call programs outside of the intended directory via the (1) exec, (2) system, (3) shell_exec, (4) passthru, or (5) popen functions, possibly involving pathnames such as "C:" drive notation.
CWE-264 - Permissions Privileges and Access Controls
CWE 264 (permissions, privileges, and access controls) is not a weakness in and of itself, rather it is a category of weaknesses related to the management of permissions, privileges, and other security features used to perform access control. If not addressed, the weaknesses in this category allow attackers to gain privileges for an unintended sphere of control, access sensitive information, and execute arbitrary commands.