PT-2026-34004 · Octobercms · October

Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-27937

NVD

CVSS v3.1

3.1

Low

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

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-27937

Affected Products

October

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-27937 · Security Note
• https://github.com/octobercms/october/security/advisories/GHSA-jj38-h5w5-mvpf · Note
• https://twitter.com/CVEnew/status/2046636250191352212 · Twitter Post
• https://twitter.com/infoflowcloud/status/2046637640292704559 · Twitter Post