Discourse is an open source discussion platform. In affected versions a vulnerability in the Polls feature allowed users to vote multiple times in a single-option poll. The problem is patched in the latest tests-passed, beta and stable versions of Discourse
a12n-server is an npm package which aims to provide a simple authentication system. A new HAL-Form was added to allow editing users in version 0.18.0. This feature should only have been accessible to admins. Unfortunately, privileges were incorrectly checked allowing any logged in user to make this change. Patched in v0.18.2.
In Moodle 3.x, course creators are able to change system default settings for courses.
By default, the WP Page Builder WordPress plugin before 1.2.4 allows subscriber-level users to edit and make changes to any and all posts pages - user roles must be specifically blocked from editing posts and pages.