---
id: CVE-2026-63003
title: >-
  django CMS is an easy-to-use and developer-friendly enterprise content
  management system powered by Django
summary: >-
  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,
  DuplicatePa…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
  - CWE-862
vendor: django-cms
product: django-cms
affected:
  - django-cms < 5.0.9
patched:
  - django-cms 5.0.9
published: '2026-08-20'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63003'
references:
  - url: >-
      https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c
    label: security-advisories@github.com
  - url: 'https://github.com/django-cms/django-cms/pull/8713'
    label: security-advisories@github.com
  - url: 'https://github.com/django-cms/django-cms/releases/tag/5.0.9'
    label: security-advisories@github.com
  - url: >-
      https://github.com/django-cms/django-cms/security/advisories/GHSA-6x92-6vx4-5fwr
    label: security-advisories@github.com
  - url: 'https://github.com/django-cms/django-cms'
  - url: 'https://pypi.org/project/django-cms'
  - url: 'https://github.com/advisories/GHSA-6x92-6vx4-5fwr'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63003'
tags:
  - nvd
  - osv
  - pip
  - ghsa
epss: 0.00415
epssPercentile: 0.33038
aliases:
  - GHSA-6x92-6vx4-5fwr
  - PYSEC-2026-3821
ecosystem: pip
ingestedAt: '2026-08-20T18:59:53.967Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-63003)

Affected packages:

- `django-cms < 5.0.9`

Patched in:

- `django-cms 5.0.9`

Source: https://osv.dev/vulnerability/GHSA-6x92-6vx4-5fwr