Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2014-3542
mod/lti/service.php in Moodle through 2.3.11 2.4.x before 2.4.11 2.5.x before 2.5.7 2.6.x before 2.6.4 and 2.7.x before 2.7.1 allows remote attackers to read arbitrary files via an XML external entity declaration in conjunction with an entity reference related to an XML External Entity (XXE) issue.