CVE-2026-61663
django CMS: Missing authorization in `render_object_structure` discloses non-PageContent placeholder structure to low-privileged staff
Description
django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, render_object_structure fails to authorize non-PageContent objects that use PlaceholderRelationField. An active staff user without cms.use_structure or model-level view or change permission can request the //admin/cms/placeholder/object/<content_type_id>/structure/<object_id>/ endpoint with guessed content_type_id and object_id values. The response discloses placeholder slot names, plugin trees, plugin identifiers, labels, and object existence for frontend-editable objects. The fix applies user_can_view_placeholder_source to the non-PageContent branch while keeping the structure board read-only for view-only users. This issue is fixed in versions 5.0.9.
INFO
Published Date :
Aug. 20, 2026, 7:16 p.m.
Last Modified :
Oct. 26, 2026, 10:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update django CMS to version 5.0.9 or later.
- Apply the provided security fix.
- Verify user permissions are correctly configured.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-61663.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-61663 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-61663
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-61663 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-61663 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: django-cms, Description: django CMS es un sistema de gestión de contenido empresarial fácil de usar y amigable para desarrolladores, impulsado por Django. Antes de la versión 5.0.9, render_object_structure no autoriza objetos que no son PageContent y que utilizan PlaceholderRelationField. Un usuario de personal activo sin el permiso cms.use_structure o permiso de visualización o cambio a nivel de modelo puede solicitar el endpoint //admin/cms/placeholder/object/[content_type_id]/structure/[object_tag]/ con valores de content_type_id y object_id adivinados. La respuesta revela nombres de ranuras de marcador de posición, árboles de plugin, identificadores de plugin, etiquetas y la existencia del objeto para objetos editables desde el frontend. La solución aplica user_can_view_placeholder_source a la rama que no es PageContent mientras mantiene el panel de estructura de solo lectura para usuarios de solo visualización. Este problema se corrige en las versiones 5.0.9. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added Reference https://github.com/django-cms/django-cms/security/advisories/GHSA-8qj2-c6q4-f399 Added SSVC {'id': 'CVE-2026-61663', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T15:15:25.782831Z'} -
New CVE Received by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'django-cms', 'product': 'django-cms', 'versions': [{'status': 'affected', 'version': '< 5.0.9'}]}] Added Description django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, render_object_structure fails to authorize non-PageContent objects that use PlaceholderRelationField. An active staff user without cms.use_structure or model-level view or change permission can request the //admin/cms/placeholder/object/<content_type_id>/structure/<object_id>/ endpoint with guessed content_type_id and object_id values. The response discloses placeholder slot names, plugin trees, plugin identifiers, labels, and object existence for frontend-editable objects. The fix applies user_can_view_placeholder_source to the non-PageContent branch while keeping the structure board read-only for view-only users. This issue is fixed in versions 5.0.9. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-639 Added CWE CWE-862 Added Reference https://github.com/django-cms/django-cms/commit/9c82abfeb25471583e23906ea1ebef9202527b04 Added Reference https://github.com/django-cms/django-cms/pull/8703 Added Reference https://github.com/django-cms/django-cms/releases/tag/5.0.9 Added Reference https://github.com/django-cms/django-cms/security/advisories/GHSA-8qj2-c6q4-f399