Moodle Permissions Privileges and Access Controls Vulnerability - CVE-2014-7837
mod/wiki/admin.php in Moodle through 2.4.11 2.5.x before 2.5.9 2.6.x before 2.6.6 and 2.7.x before 2.7.3 allows remote authenticated users to remove wiki pages by leveraging delete access within a different subwiki.