CVE-2013-5674 Information

Description

badges/external.php in Moodle 2.5.x before 2.5.2 does not properly handle an object obtained by unserializing a description of an external badge which allows remote attackers to conduct PHP object injection attacks via unspecified vectors as demonstrated by overwriting the value of the userid parameter.

Reference

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-40924 https://moodle.org/mod/forum/discuss.php?d=238397