Auth bypass in Craftcms Cms
CVE-2026-84797
Craft CMS versions before 5.10.11 contain an authorization bypass vulnerability in ElementsController::actionDuplicate() that allows authenticated users with createEntries permission to delete peer provisional drafts. Attackers can exploit the deleteProvisionalDraft parameter to delete another user's unsaved draft without proper authorization checks, gaining access to the victim's in-progress content.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (19.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/craftcms/cms/security/advisories/GHSA-2f55-h4xr-92p2 (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-5.0.0-rc1-before-5.10.11-authorization-b… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84797?
- CVE-2026-84797 is a medium-severity vulnerability in Craftcms Cms, classified under Missing Authorization. CVSS score: 6.3/10. Published 2026-09-02.
- How severe is CVE-2026-84797?
- Medium severity. CVSS v3 base score is 6.3 out of 10.