CVE-2025-61676 — October CMS Vulnerable to Stored XSS via Branding Styles

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
octobercms / october	affected >= 4.0.0, < 4.0.12; affected < 3.7.13

CWE

CWE-79

References

https://github.com/octobercms/october/security/advisories/GHSA-wvpq-h33f-8rp6

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.