This module enables you to display content in tabs, where each tab renders a block, a node, a view, or another Quick Tabs instance.
The module did not correctly enforce access when rendering node and block tabs. It treated a neutral access result as a grant for node tabs and block plugins, and performed no access check for reusable custom blocks. Content that should have been denied was therefore rendered — for example, an unpublished node or unpublished reusable custom block could be shown to users without permission to view it.
