Cross-site scripting in Craft CMS - CVE-2026-55793
Published: June 16, 2026
Vulnerability identifier: #VU134674
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-55793
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary script in a victim user's control panel session.
The vulnerability exists due to cross-site scripting in ElementTableSorter.js when handling a dragged Structure entry in table view. A remote user can store a crafted entry title and trigger script execution during the victim's drag-and-drop action to execute arbitrary script in a victim user's control panel session.
User interaction is required, and the issue affects Structure-type sections when the victim drags another entry under the poisoned entry in table view.
Affected software
Craft CMS
How to mitigate CVE-2026-55793
Install security update from vendor's website.
Craft CMS - update to 5.10.0