StudioCMS is a server-side-rendered, Astro native, headless content management system. Versions prior to 0.2.0 contain a Broken Object Level Authorization (BOLA) vulnerability in the Content Management feature that allows users with the "Visitor" role to access draft content created by Editor/Admin/Owner users. Version 0.2.0 patches the issue.
https://github.com/withstudiocms/studiocms/security/advisories/GHSA-8cw6-53m5-4932
https://github.com/withstudiocms/studiocms/releases/tag/studiocms%400.2.0
https://github.com/withstudiocms/studiocms/commit/efc10bee20db090fdd75463622c30dda390c50ad