Description
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: 2026-08-20
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-6x92-6vx4-5fwr django CMS: Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass)
History

Thu, 20 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Django-cms
Django-cms django Cms
Vendors & Products Django-cms
Django-cms django Cms

Thu, 20 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Description 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.
Title django CMS: Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass)
Weaknesses CWE-639
CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Subscriptions

Django-cms Django Cms
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-20T18:09:13.988Z

Reserved: 2026-07-14T23:10:57.032Z

Link: CVE-2026-63003

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-20T19:16:57.163

Modified: 2026-08-20T19:16:57.163

Link: CVE-2026-63003

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T19:30:05Z

Weaknesses
  • CWE-639

    Authorization Bypass Through User-Controlled Key

  • CWE-862

    Missing Authorization