{"id":"CVE-2026-63003","aliases":["GHSA-6x92-6vx4-5fwr"],"url":"https://o3.security/vulnerability/CVE-2026-63003","summary":"django CMS: Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass)","details":"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.","published":"2026-08-20T18:09:13.988Z","modified":"2026-08-21T03:46:54.928939479Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"django-cms","fixedVersion":"5.0.9"}],"fix":{"url":"https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c","label":"django-cms/django-cms@3e1ccf7"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63003.json"},{"type":"FIX","url":"https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c"},{"type":"FIX","url":"https://github.com/django-cms/django-cms/pull/8713"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/releases/tag/5.0.9"},{"type":"ADVISORY","url":"https://github.com/django-cms/django-cms/security/advisories/GHSA-6x92-6vx4-5fwr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63003"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-21T03:46:54.928939479Z"}}