Incorrect authorization in Craft CMS - #VU139970
Published: July 29, 2026
Vulnerability identifier: #VU139970
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify category structure.
The vulnerability exists due to improper access control in the structures/move-element action when handling requests to move category elements. A remote user can send a crafted request to modify category structure.
This issue affects users with only view permission for a category group, allowing persistent reordering and re-parenting of categories that can change derived category and descendant URLs.
Affected software
Craft CMS
Remediation
Install security update from vendor's website.
Craft CMS - update to 5.10.6