System Dashboard <= 2.8.8 - Missing Authorization to Information Disclosure (sd_php_info)

The System Dashboard plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the sd_php_info() function hooked via an AJAX action in all versions up to, and including, 2.8.7. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve sensitive information provided by PHP info.