Moodle before 2.2.2 has Personal information disclosure, when administrative setting users name display is set to first name only full names are shown in page breadcrumbs.
Moodle has a database activity export permission issue where the export function of the database activity module exports all entries even those from groups the user does not belong to
A flaw was found in moodle before versions 3.7.1, 3.6.5, 3.5.7. Users with permission to delete entries from a glossary were able to delete entries from other glossaries they did not have direct access to.
A flaw was found in moodle before versions 3.7.1, 3.6.5, 3.5.7. Teachers in a quiz group could modify group overrides for other groups in the same quiz.
A flaw was found in moodle before versions 3.7.1, 3.6.5, 3.5.7. Teachers in an assignment group could modify group overrides for other groups in the same assignment.