Package Instance

Improper Input Validation
The size of users' private file uploads via email were not correctly checked, so their quota allowance could be exceeded.

URL Redirection to Untrusted Site (Open Redirect)
The form to upload cohorts contained a redirect field, which was not restricted to internal URLs.

Permissions, Privileges, and Access Controls
There was a link to site home within the the Boost theme's secure layout, meaning students could navigate out of the page.

Moodle context freezing
A vulnerability was found in moodle before version 3.6.3. The get_with_capability_join and get_users_by_capability functions were not taking context freezing into account when checking user capabilities

Improper Authorization
Users could assign themselves an escalated role within courses or content accessed via LTI, by modifying the request to the LTI publisher site.

URL Redirection to Untrusted Site (Open Redirect)
Links within assignment submission comments would open directly (in the same window). Although links themselves may be valid, opening within the same window and without the no-referrer header policy made them more susceptible to exploits.

Improper Input Validation
Users with the "login as other users" capability (such as administrators/managers) can access other users' Dashboards, but the JavaScript those other users may have added to their Dashboard was not being escaped when being viewed by the user logging in on their behalf.

Information Exposure
Permissions were not correctly checked before loading event information into the calendar's edit event modal popup, so logged in non-guest users could view unauthorised calendar events.