CVE-2025-61676

October is a Content Management System (CMS) and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-site scripting (XSS) vulnerabilities was identified in October CMS backend configuration forms. A user with the Customize Backend Styles permission could inject malicious HTML/JS into the stylesheet input at Styles from Branding & Appearance settings. A specially crafted input could break out of the intended <style> context, allowing arbitrary script execution across backend pages for all users. This issue has been patched in versions 3.7.13 and 4.0.12.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/octobercms/october/security/advisories/GHSA-wvpq-h33f-8rp6	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:octobercms:october::::::::
	cpe:2.3:a:octobercms:october::::::::

History

No history.

Information

Published : 2026-01-10 04:16

Updated : 2026-01-20 16:05

NVD link : CVE-2025-61676

Mitre link : CVE-2025-61676

CVE.ORG link : CVE-2025-61676

JSON object : View

Products Affected

octobercms

october

CWE

CWE-79

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

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