Please note that for versions 3.1 and 3.4 only, this fix removes access to other users' Dashboards while using the login-as functionality. Versions 3.5 and 3.6 have additional sanitizing implemented, which allowed the risk to be removed while retaining Dashboard access. If you require access to Dashboards through the login-as feature, we recommend upgrading to Moodle 3.5 or above (noting that 3.1 and 3.4 will also no longer receive security updates after their next releases in May 2019).
|Versions affected:||3.6 to 3.6.2, 3.5 to 3.5.4, 3.4 to 3.4.7, 3.1 to 3.1.16 and earlier unsupported versions|
|Versions fixed:||3.6.3, 3.5.5, 3.4.8 and 3.1.17|
|Reported by:||Daniel Thatcher|
|Workaround:||Use incognito/private browsing mode when using the "Log in as" functionality, then close the private window before logging back in as your own user, to minimise session or cookie related risks. Alternatively, avoid visiting the Dashboard when logged in as other users until patch is applied.|