Auth bypass in Craftcms Cms
CVE-2026-72785
Craft CMS 5.0.0-RC1 through 5.10.5 contains an incorrect authorization vulnerability. A control-panel user holding only the viewCategories permission (without saveCategories) for a category group can permanently modify that group's category structure — reordering and re-parenting categories — via the structures/move-element action. The structureEditable flag is computed from the view permission rather than the save permission, and the StructuresController authorizes the mutating action on that read-time session grant without a save re-check. Because a category's URI is derived from its position in the structure, moving a category changes its URL and those of its descendants and can corrupt navigation menus built from the category taxonomy. The issue is fixed in 5.10.6.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.8% 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
- Craftcms Cms — versions 5.0.0-RC1, 5.10.6
Weakness classification (CWE)
References
- github.com/craftcms/cms/security/advisories/GHSA-xxpx-f366-4xpq (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-before-authorization-bypass-via-structur… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72785?
- CVE-2026-72785 is a medium-severity vulnerability in Craftcms Cms, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-08-11.
- How severe is CVE-2026-72785?
- Medium severity. CVSS v3 base score is 4.3 out of 10.