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MEDIUM severity

CVE-2026-54624 — django-cms

MEDIUMFix: django-cms/django-cms@7642a98

CVE-2026-54624 is a medium-severity (CVSS 6.5) CWE-285 vulnerability in django-cms. A fix is available for django-cms — see the affected versions and patch details below.

django CMS: Structure endpoint bypasses page-view permission

Also known asGHSA-vgxm-h9gx-h9w7PYSEC-2026-3826
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-54624.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs34th percentile — riskier than 34% of all scored CVEsHighest risk
0.00%0.30%0.61%0.92%0.2%0.4%0.4%Sep 26Oct 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-54624 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 382,795 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐍django-cms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Summary

The 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.

Details

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.

The 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.

Impact

A 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.

This 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.

Patches

Fixed in 5.0.8: the structure endpoint now enforces user_can_view_page() for PageContent objects, matching edit/preview.

Workarounds

None other than restricting staff access. Upgrade is recommended.

Credits

Reported by the security team at the University of Sydney ([@reporter]).

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIdjango-cmsall versions5.0.8pip install --upgrade 'django-cms==5.0.8'

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for django-cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update django-cms to 5.0.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-54624 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

### Summary The 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. ### Details `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_pag
O3 Security · Impact-Aware SCA

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CVE-2026-54624: django-cms — Fixed in 5.0.8 | O3 Security