CVE-2012-4400
repository/repository_ajax.php in Moodle 2.2.x before 2.2.5 and 2.3.x before 2.3.2 allows remote authenticated users to bypass intended upload-size restrictions via a -1 value in the maxbytes field.
Date published : 2012-09-19
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-30792