CVE-2026-27937

October: Reflected XSS via DataTable Form Widget

State: Published
Severity: 3.1 Low
Published: Apr 21, 2026
Updated: Apr 21, 2026
Reserved: Feb 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	3.1 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
octoberoctobercms	>= 4.0.0, < 4.1.16Affected < 3.7.16Affected

References

https://github.com/octobercms/october/security/advisories/GHSA-jj38-h5w5-mvpf

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