calendar/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 provides calendar-event data without considering whether an activity is hidden, which allows remote authenticated users to obtain sensitive information via a web-service request.
{ "nvd_published_at": "2016-05-22T20:59:00Z", "cwe_ids": [ "CWE-200" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2024-01-26T20:13:14Z" }