CVE-2026-63003

Name of the Vulnerable Software and Affected Versions django CMS versions prior to 5.0.9

Description Page duplication lacks an object-level authorization check on the source page. In cms/admin/forms.py, DuplicatePageForm.source accepts any Page, the AddPageForm constructor does not narrow a hidden source field, AddPageForm.clean does not validate the source against the user, and AddPageForm.save calls from source. Additionally, in cms/admin/pageadmin.py, duplicate and PageAdmin.has add permission only verify if a staff user can add a page. When CMS PERMISSION is enabled, a crafted source value allows copying every placeholder and plugin from an unauthorized page with permissions=False, removing source view restrictions and exposing content across sites or restricted subtrees.

Recommendations Update to version 5.0.9.