{"id":"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.","aliases":["GHSA-6x92-6vx4-5fwr","PYSEC-2026-3821"],"modified":"2026-09-10T12:25:36.931395327Z","published":"2026-08-20T18:09:13.988Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-639","CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63003.json"},"references":[{"type":"WEB","url":"https://github.com/django-cms/django-cms/releases/tag/5.0.9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63003.json"},{"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"},{"type":"FIX","url":"https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c"},{"type":"FIX","url":"https://github.com/django-cms/django-cms/pull/8713"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/django-cms/django-cms","events":[{"introduced":"0"},{"fixed":"3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c"},{"fixed":"d7eeb6526bd757cfcdf28122066f39803990c5e4"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.0.9"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["5.0.8","5.0.7","5.0.6","5.0.5","5.0.4","5.0.3","5.0.2","5.0.1","5.0.0","5.0.0a1","4.0.0dev11","4.0.0","3.5.2","3.5.1","3.5.0","3.5.0rc1","3.4.2","3.4.1","3.4.0","3.4.0rc3","3.4.0rc2","3.4.0rc1","3.3.0","3.3.0.rc4","3.3.0.rc3","3.3.0.rc2","3.2.0","3.2.0.rc14","3.2.0.rc13","3.2.0.rc12","3.2.0.rc11","3.2.0.rc10","3.2.0.rc9","3.2.0.rc8","3.2.0.rc7","3.2.0.rc6","3.2.0.rc5","3.2.0.rc4","3.2.0.rc3","3.2.0.rc1","2.3.4","3.1","3.0.9","3.0.10","3.0.8","3.0.7","3.0.6","3.0.5","3.0.3","3.0.4","3.0.2","3.0.1","3.0","3.0c2","3.0c1","temporary","3.0.0.beta3","3.0.0.beta2","3.0.0.beta","2.4.1","2.4.0","2.4.0.rc1","2.3.5","2.1.4","2.2","2.3.3","show","2.3.2","2.3.2.rc1","2.3","2.3rc1","2.1.3","2.1.2","2.1.1","2.1.0","2.1.0.rc3","2.1.0.rc2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63003.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}