CVE-2014-7831 Information

Description

lib/classes/grades_external.php in Moodle 2.7.x before 2.7.3 does not consider the moodle/grade:viewhidden capability before displaying hidden grades which allows remote authenticated users to obtain sensitive information by leveraging the student role to access the get_grades web service.

Reference

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-47766 http://openwall.com/lists/oss-security/2014/11/17/11 http://www.securitytracker.com/id/1031215 https://moodle.org/mod/forum/discuss.php?d=275153