Mahara 15.04 before 15.04.13 and 16.04 before 16.04.7 and 16.10 before 16.10.4 and 17.04 before 17.04.2 are vulnerable to recording plain text passwords in the event_log table during the user creation process if full event logging was turned on.

Mahara 15.04 before 15.04.9 and 15.10 before 15.10.5 and 16.04 before 16.04.3 are vulnerable to a group's configuration page being editable by any group member even when they didn't have the admin role.

Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to profile pictures being accessed without any access control checks consequently allowing any of a user's uploaded profile pictures to be viewable by anyone, whether or not they were currently selected as the "default" or used in any pages.

Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to some authentication methods, which do not use Mahara's built-in login form, still allowing users to log in even if their institution was expired or suspended.

Mahara 15.04 before 15.04.10 and 15.10 before 15.10.6 and 16.04 before 16.04.4 are vulnerable to incorrect access control after the password reset link is sent via email and then user changes default email, Mahara fails to invalidate old link.Consequently the link in email can be used to gain access to the user's account.

Mahara 15.04 before 15.04.7 and 15.10 before 15.10.3 running PHP 5.3 are vulnerable to one user being logged in as another user on a separate computer as the same session ID is served. This situation can occur when a user takes an action that forces another user to be logged out of Mahara, such as an admin changing another user's account settings.

Mahara 15.04 before 15.04.9 and 15.10 before 15.10.5 and 16.04 before 16.04.3 are vulnerable to passwords or other sensitive information being passed by unusual parameters to end up in an error log.

Mahara 15.04 before 15.04.7 and 15.10 before 15.10.3 are vulnerable to prevent session IDs from being regenerated on login or logout. This makes users of the site more vulnerable to session fixation attacks.

Mahara 1.10 before 1.10.9 and 15.04 before 15.04.6 and 15.10 before 15.10.2 are vulnerable to XSS due to window.opener (target="_blank" and window.open())

Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to PHP code execution as Mahara would pass portions of the XML through the PHP "unserialize()" function when importing a skin from an XML file.

Mahara 1.9 before 1.9.8 and 1.10 before 1.10.6 and 15.04 before 15.04.3 are vulnerable to perform a cross-site request forgery (CSRF) attack on the uploader contained in Mahara's filebrowser widget. This could allow an attacker to trick a Mahara user into unknowingly uploading malicious files into their Mahara account.

Mahara 1.9 before 1.9.7 and 1.10 before 1.10.5 and 15.04 before 15.04.2 are vulnerable to the arbitrary execution of Javascript in the browser of a logged-in user because the title of the portfolio page was not being properly escaped in the AJAX script that updates the Add/remove watchlist link on artefact detail pages.

Mahara 1.9 before 1.9.7 and 1.10 before 1.10.5 and 15.04 before 15.04.2 are vulnerable to anonymous comments being able to be placed on artefact detail pages even when the site administrator had disallowed anonymous comments.

Mahara 1.9 before 1.9.6 and 1.10 before 1.10.4 and 15.04 before 15.04.1 are vulnerable to a site admin or institution admin being able to place HTML and Javascript into an institution display name, which will be displayed to other users unescaped on some Mahara system pages.

Mahara 1.8 before 1.8.7 and 1.9 before 1.9.5 and 1.10 before 1.10.3 and 15.04 before 15.04.0 are vulnerable to users receiving watchlist notifications about pages they do not have access to anymore.

Mahara 1.8 before 1.8.7 and 1.9 before 1.9.5 and 1.10 before 1.10.3 and 15.04 before 15.04.0 are vulnerable to users being able to delete their submitted page through URL manipulation.

Mahara 1.8 before 1.8.7 and 1.9 before 1.9.5 and 1.10 before 1.10.3 and 15.04 before 15.04.0 are vulnerable to a maliciously created .xml file that can have its code executed when user tries to download the file.

Mahara 1.8 before 1.8.7 and 1.9 before 1.9.5 and 1.10 before 1.10.3 and 15.04 before 15.04.0 are vulnerable to server-side request forgery attacks as not all processes of curl redirects are checked against a white or black list. Employing SafeCurl will prevent issues.

Mahara 1.10 before 1.10.0 and 15.04 before 15.04.0 are vulnerable to possible cross site scripting when dragging/dropping files into a collection if the file has Javascript code in its title.

Mahara 1.10 before 1.10.0 and 15.04 before 15.04.0 are vulnerable to possible cross site scripting when adding a text block to a page via the keyboard (rather than drag and drop).