#VU125887 Cross-site scripting in October CMS - CVE-2025-61674

 

#VU125887 Cross-site scripting in October CMS - CVE-2025-61674

Published: April 14, 2026


Vulnerability identifier: #VU125887
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-2025-61674
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
October CMS
Software vendor:
OctoberCMS

Description

The vulnerability allows a remote user to execute arbitrary script in backend user sessions.

The vulnerability exists due to cross-site scripting in backend configuration forms when processing editor settings markup styles input. A remote privileged user can inject malicious HTML or JavaScript into the stylesheet input to execute arbitrary script in backend user sessions.

User interaction is required, and the injected script can affect backend pages viewed by other users.


Remediation

Install security update from vendor's website.

External links