Some files were being delivered with incorrect headers in Moodle before 2.4.7, meaning they could be cached downstream (CVE-2013-4522).
Cross-site scripting in Moodle before 2.4.7 due to JavaScript in messages being executed on some pages (CVE-2013-4523).
The file system repository in Moodle before 2.4.7 was allowing access to files beyond the Moodle file area (CVE-2013-4524).
Cross-site scripting in Moodle before 2.4. due to JavaScript in question answers being executed on the Quiz Results page (CVE-2013-4525).