{"id":"PYSEC-2026-3826","summary":"django CMS: Structure endpoint bypasses page-view permission","details":"### Summary\nThe structure-board endpoint (`render_object_structure`) renders a page's plugin structure without verifying that the requesting user is allowed to view the page. The edit and preview endpoints enforce this via `render_page()`, but the structure endpoint does not, allowing a low-privileged staff user to read the plugin structure of a view-restricted page.\n\n### Details\n`render_object_structure` (in `cms/views.py`) loads the `PageContent` object and renders `cms/toolbar/structure.html` directly. Unlike `render_object_endpoint` (used by edit/preview), which renders through `render_pagecontent` → `render_page` and calls `user_can_view_page(request.user, page)` (returning 404 when the user may not view the page), the structure endpoint performs no page-level authorization.\n\nThe rendered structure board includes each plugin's `get_short_description()`  (e.g. link names/URLs, text snippets), so the content of a restricted page is disclosed, not just its shape.\n\n### Impact\nA staff user (any account with `is_staff=True`) who lacks view permission on a  view-restricted page can retrieve that page's plugin structure and short descriptions by requesting the structure endpoint with the page's content-type id and object id.\n\nThis only applies when `CMS_PERMISSION=True` and the page has view restrictions (or `CMS_PUBLIC_FOR='staff'`). Sites without per-page view restrictions are not affected.\n\n### Patches\nFixed in 5.0.8: the structure endpoint now enforces `user_can_view_page()` for `PageContent` objects, matching edit/preview.\n\n### Workarounds\nNone other than restricting staff access. Upgrade is recommended.\n\n### Credits\nReported by the security team at the University of Sydney ([@reporter]).","aliases":["CVE-2026-54624","GHSA-vgxm-h9gx-h9w7"],"modified":"2026-09-10T12:15:03.052573575Z","published":"2026-09-10T09:44:52.426487Z","references":[{"type":"WEB","url":"https://github.com/django-cms/django-cms/security/advisories/GHSA-vgxm-h9gx-h9w7"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/pull/8645"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/commit/7642a98ab3170793c0b27b4125dd1f3d318b8a1c"},{"type":"PACKAGE","url":"https://github.com/django-cms/django-cms"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/releases/tag/5.0.8"},{"type":"PACKAGE","url":"https://pypi.org/project/django-cms"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-vgxm-h9gx-h9w7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54624"}],"affected":[{"package":{"name":"django-cms","ecosystem":"PyPI","purl":"pkg:pypi/django-cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.8"}]}],"versions":["2.0.1","2.0.2","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.2","2.2.1","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","2.4.0","2.4.1","2.4.2","2.4.3","3.0","3.0.1","3.0.10","3.0.11","3.0.12","3.0.13","3.0.14","3.0.15","3.0.16","3.0.17","3.0.18","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.0.b1","3.1.0rc1","3.1.0rc2","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.10.0","3.10.0rc1","3.10.0rc2","3.10.1","3.10.1rc1","3.11.0","3.11.1","3.11.10","3.11.11","3.11.1rc1","3.11.2","3.11.3","3.11.4","3.11.5","3.11.6","3.11.7","3.11.8","3.11.9","3.2.0","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.3.0","3.3.0rc2","3.3.0rc3","3.3.0rc4","3.3.1","3.3.2","3.3.3","3.3.4","3.4.0","3.4.1","3.4.2","3.4.3","3.4.4","3.4.5","3.4.6","3.4.7","3.5.0","3.5.1","3.5.2","3.5.3","3.5.4","3.6.0","3.6.0rc1","3.6.0rc3","3.6.1","3.7.0","3.7.0rc1","3.7.0rc2","3.7.1","3.7.2","3.7.3","3.7.4","3.8.0","3.8.0rc1","3.8.1","3.8.2","3.9.0","3.9.0rc1","3.9.0rc2","3.9.0rc3","4.1.0","4.1.0rc1","4.1.0rc2","4.1.0rc3","4.1.0rc4","4.1.0rc5","4.1.1","4.1.10","4.1.11","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.9","5.0.0","5.0.0a1","5.0.1","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/django-cms/PYSEC-2026-3826.yaml"}}],"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"}]}