CVE-2026-27937
October: Reflected XSS via DataTable Form Widget
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | octobercms |
| Product | october |
| Published | Apr 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
octobercms / october
>= 4.0.0, < 4.1.16 < 3.7.16