EUVD-2026-63569
GHSA-8qj2-c6q4-f399
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Staff authentication (PR:L) required; network-accessible admin endpoint; confidentiality limited to structural metadata only, no integrity or availability impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Missing object-level authorization in django CMS's render_object_structure endpoint exposes CMS structure metadata of non-PageContent objects to low-privileged staff users. Any active staff account (is_staff=True) can request the /admin/cms/placeholder/object/<content_type_id>/structure/<object_id>/ endpoint for frontend-editable objects using PlaceholderRelationField, receiving placeholder slot names, plugin trees, plugin identifiers and labels, and object existence - without holding cms.use_structure or any model-level view or change permission. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | An authenticated, active Django staff account (is_staff=True) is required - this is the primary limiting factor and means anonymous or non-staff authenticated users cannot exploit this vulnerability. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 3.1 score of 4.3 (Medium) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N is well-calibrated for this issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to django-cms 5.0.9, which is the vendor-released patch confirmed by the GitHub release at https://github.com/django-cms/django-cms/releases/tag/5.0.9 and the fix commit 9c82abfeb25471583e23906ea1ebef9202527b04. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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