The core_enrol_get_enrolled_users web service in enrol/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly implement group-based access restrictions, which allows remote authenticated users to obtain sensitive course-participant information via a web-service request.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| moodle/moodle(Packagist) | 0 | 2.7.11 | N/A |
| moodle/moodle(Packagist) | 2.8.0 | 2.8.9 | N/A |
| moodle/moodle(Packagist) | 2.9.0 | 2.9.3 | N/A |
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