#VU125886 Cross-site scripting in October CMS - CVE-2025-61676
Published: April 14, 2026
Vulnerability identifier: #VU125886
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-61676
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
October CMS
October CMS
Software vendor:
OctoberCMS
OctoberCMS
Description
The vulnerability allows a remote user to execute arbitrary script in backend pages.
The vulnerability exists due to cross-site scripting in the branding and appearance styles input when processing stylesheet input in backend configuration forms. A remote privileged user can inject malicious HTML/JavaScript into the stylesheet field to execute arbitrary script in backend pages.
User interaction is required for a victim to view an affected backend page.
Remediation
Install security update from vendor's website.