Low severity3.1NVD Advisory· Published Apr 21, 2026· Updated Apr 22, 2026

CVE-2026-27937

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
october/systemPackagist	< 3.7.16	3.7.16
october/systemPackagist	>= 4.0.0	—

Affected products

ghsa-coords
pkg:composer/october/system
Range: < 3.7.16

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-jj38-h5w5-mvpfghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-27937ghsaADVISORY
github.com/octobercms/october/security/advisories/GHSA-jj38-h5w5-mvpfnvdWEB

News mentions

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cvss	0.202
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000