CVE-2026-63003

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Aug 20, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available

5.0.9

Patch available: django-cms/django-cms 5.0.9

https://github.com/django-cms/django-cms/releases/tag/5.0.9
github_commit Patch Available

commit 3e1ccf7573eb (django-cms/django-cms)

Patch available: django-cms/django-cms 5.0.9 (contains commit 3e1ccf7573eb)

https://github.com/django-cms/django-cms/commit/3e1ccf7573eb1a74ebbbfaaa812c1f5cadf14e6c
github_pr Patch Available

fix: Harden page duplication, group permissions and URL validator (#8704)

Patch available: django-cms/django-cms 5.0.9 (PR #8713 merged 2026-07-08)

https://github.com/django-cms/django-cms/pull/8713
github Patch Available🟡 PoC Available

Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass) · Advisory · django-cms/django-cms · GitHub

https://github.com/django-cms/django-cms/security/advisories/GHSA-6x92-6vx4-5fwr

Vendor Advisories for CVE-2026-63003(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
django-cms2.0.1 ... 5.0.8 (141 versions)5.0.9—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 20:19 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 17:41 UTCEG score recompute
  4. 2026-09-16 14:33 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 12:59 UTCEG score recompute
  8. 2026-09-14 11:25 UTCEG score recompute
  9. 2026-09-13 09:52 UTCEG score recompute
  10. 2026-09-12 08:19 UTCEG score recompute
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 09:37 UTCEPSS rescore
  13. 2026-09-11 06:45 UTCEG score recompute
  14. 2026-09-08 02:03 UTCEG score recompute
  15. 2026-09-07 16:01 UTCEPSS rescore
  16. 2026-09-07 00:29 UTCEG score recompute
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-05 22:41 UTCEG score recompute
  19. 2026-09-05 15:31 UTCEPSS rescore
  20. 2026-09-04 21:07 UTCEG score recompute
  21. 2026-09-04 05:07 UTCEPSS rescore
  22. 2026-09-02 16:46 UTCEG score recompute
  23. 2026-09-02 14:12 UTCEPSS rescore
  24. 2026-09-01 15:05 UTCEG score recompute
  25. 2026-09-01 13:54 UTCEPSS rescore
Show 23 more
  1. 2026-09-01 04:40 UTCEPSS rescore
  2. 2026-08-31 13:10 UTCEG score recompute
  3. 2026-08-30 19:17 UTCEPSS rescore
  4. 2026-08-30 11:26 UTCEG score recompute
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-29 09:52 UTCEG score recompute
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 08:18 UTCEG score recompute
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-27 06:44 UTCEG score recompute
  11. 2026-08-26 14:46 UTCEPSS rescore
  12. 2026-08-26 04:41 UTCEG score recompute
  13. 2026-08-25 13:49 UTCEPSS rescore
  14. 2026-08-25 03:07 UTCEG score recompute
  15. 2026-08-24 01:33 UTCEG score recompute
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-23 00:00 UTCEG score recompute
  18. 2026-08-21 23:49 UTCEPSS rescore
  19. 2026-08-21 22:26 UTCEG score recompute
  20. 2026-08-21 21:54 UTCEG score recompute
  21. 2026-08-20 19:18 UTCEG score recompute
  22. 2026-08-20 18:22 UTCEG score recompute
  23. 2026-08-20 18:21 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-63003?
CVE-2026-63003 is a medium vulnerability published on August 20, 2026. 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…
When was CVE-2026-63003 disclosed?
CVE-2026-63003 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63003 actively exploited?
CVE-2026-63003 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.7% of all scored CVEs.
What is the CVSS score of CVE-2026-63003?
CVE-2026-63003 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-63003?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63003, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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