Vulnerability in Wagtail
CVE-2026-123819
Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, a CMS user who has add permission for a snippet model but lacks change and view permission for an existing snippet can access the snippet copy view and copy that source object. The copy operation reveals the contents of a snippet that the user is not authorized to view. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Wagtail — versions < 7.0.9, = 8.0rc1, >= 7.1, < 7.3.4
Weakness classification (CWE)
References
- github.com/wagtail/wagtail/security/advisories/GHSA-x5cx-w6p2-mxf2
- github.com/wagtail/wagtail/commit/03ecdb63b82fa87a4932c08bc4cdd9a99339f6d4
- github.com/wagtail/wagtail/commit/5afd40f0bc04f7986256ced8ec959af30e1446be
- github.com/wagtail/wagtail/commit/aebf89233c0cc9739e240e1112d705e0c995f79c
- github.com/wagtail/wagtail/commit/c06183cc9c9590e4585f27899173bc741bbbcb10
- github.com/wagtail/wagtail/releases/tag/v7.0.9
- github.com/wagtail/wagtail/releases/tag/v7.3.4
- github.com/wagtail/wagtail/releases/tag/v7.4.3
- github.com/wagtail/wagtail/releases/tag/v8.0rc2
Frequently asked questions
- What is CVE-2026-123819?
- CVE-2026-123819 is a medium-severity vulnerability in Wagtail, classified under Improper Handling of Insufficient Permissions or Privileges. CVSS score: 6.5/10. Published 2026-11-09.
- How severe is CVE-2026-123819?
- Medium severity. CVSS v3 base score is 6.5 out of 10.