The Netic Group Export add-on before 1.0.3 for Atlassian Jira does not perform authorization checks. This might allow an unauthenticated user to export all groups from the Jira instance by making a groupexport_download=true request to a plugins/servlet/groupexportforjira/admin/ URI.
The Netic User Export add-on before 2.0.6 for Atlassian Jira does not perform authorization checks. This might allow an unauthenticated user to export all users from Jira by making an HTTP request to the affected endpoint.