PT-2026-34004 · Unknown · October Cms

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

Positive Technologies (AI Summary)

CVSS v3.1

3.1

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions October versions prior to 3.7.16 October versions prior to 4.1.16

Description October is a Content Management System (CMS) and web platform. A reflected Cross-Site Scripting (XSS) issue exists in the backend DataTable widget due to a query parameter being rendered without proper output escaping. XSS is a flaw that allows an attacker to inject malicious scripts into web pages viewed by other users.

Recommendations Update to version 3.7.16 Update to version 4.1.16

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-27937

GHSA-JJ38-H5W5-MVPF

Affected Products

October Cms

References · 7

• https://osv.dev/vulnerability/GHSA-jj38-h5w5-mvpf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-27937 · Security Note
• https://github.com/octobercms/october/security/advisories/GHSA-jj38-h5w5-mvpf · Note
• https://github.com/octobercms/october · Note
• https://twitter.com/infoflowcloud/status/2046637640292704559 · Twitter Post
• https://twitter.com/dailycve/status/2046693303593148725 · Twitter Post
• https://twitter.com/CVEnew/status/2046636250191352212 · Twitter Post