Sharetronix 3.1.1.3, 3.1.1, and earlier does not properly restrict access to unspecified AJAX functionality, which allows remote attackers to bypass authentication via unknown vectors.

Unrestricted file upload vulnerability in system/controllers/ajax/attachments.php in Sharetronix 3.1.1.3, 3.1.1, and earlier allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in an unspecified directory.

Sharetronix 3.1.1.3, 3.1.1, and earlier allows remote attackers to execute arbitrary PHP code via the (1) activities_text parameter to services/activities/set or (2) comments_text parameter to services/comments/set, which is not properly handled when executing the preg_replace function with the e modifier.

SQL injection vulnerability in Sharetronix before 3.4 allows remote authenticated users to execute arbitrary SQL commands via the invite_users[] parameter to the /invite page for a group.

Cross-site request forgery (CSRF) vulnerability in Sharetronix before 3.4 allows remote attackers to hijack the authentication of administrators for requests that add administrative privileges to a user via the admin parameter to admin/administrators.