The WP Project Manager plugin for WordPress has a security issue that allows unauthorized changes to be made to data. This is because certain checks were not included in the ‘check’ method of the ‘Create_Milestone’, ‘Create_Task_List’, ‘Create_Task’, and ‘Delete_Task’ classes in version 2.6.14. This means that people who are not logged in can create milestones, task lists, tasks, or delete tasks in any project. Please note that version 2.6.14 did try to fix this issue, but it was only a partial fix.