Vulnerability DatabaseCVE-2026-27937
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-27937
Published:April 21, 2026
Updated:May 18, 2026
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.
Affected Packages
october/october (PHP):
Affected version(s) >=v4.1.0 <v4.1.16
Fix Suggestion:
Update to version v4.1.16
october/october (PHP):
Affected version(s) >=v3.0.0 <v3.7.16
Fix Suggestion:
Update to version v3.7.16
Related Resources (3)
https://github.com/octobercms/october/security/advisories/GHSA-jj38-h5w5-mvpf
https://github.com/octobercms/october
https://nvd.nist.gov/vuln/detail/CVE-2026-27937
Do you need more information?
Contact Us
CVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.03