CVE-2026-27937 LOW

CVE-2026-27937: October: Reflected XSS via DataTable Form Widget

Vendor Octobercms
Product october
Weakness CWE-79 · XSS
Published April 21, 2026
Last update April 21, 2026
View on NVD All CVEs

CVSS base score

3.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

October is a Content Management System (CMS) and web platform. Prior to 3.7.16 and 4.1.16, a reflected Cross-Site Scripting (XSS) vulnerability was identified in the backend DataTable widget where a query parameter was rendered without proper output escaping. This vulnerability is fixed in 3.7.16 and 4.1.16.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 21, 2026 Record updated