CVE-2026-63003

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, 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. In cms/admin/pageadmin.py, duplicate and PageAdmin.has_add_permission check only whether a staff user may add a page. A crafted source value can therefore copy every placeholder and plugin from an unauthorized page with permissions=False, stripping source view restrictions and exposing content across sites or restricted subtrees when CMS_PERMISSION is enabled. This issue is fixed in versions 5.0.9.

• CWE-639
• CWE-862

• https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c
• https://github.com/django-cms/django-cms/pull/8713
• https://github.com/django-cms/django-cms/releases/tag/5.0.9
• https://github.com/django-cms/django-cms/security/advisories/GHSA-6x92-6vx4-5fwr

Published

Aug 20, 2026

Last Modified

Aug 21, 2026

Status

Received

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