CVE-2026-27937

low-risk
Published 2026-04-21

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.1/10 Low
NETWORK / HIGH complexity
16
/ 100
low-risk
Severity 11/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal