In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, the account associated with a web services token is vulnerable to being exploited and logged into, resulting in information disclosure (at a minimum) and often escalation of privileges.
In Mahara 19.04 before 19.04.6, 19.10 before 19.10.4, and 20.04 before 20.04.1, certain places could execute file or folder names containing JavaScript.