#VU125891 Stored cross-site scripting in October CMS - CVE-2026-24907

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Main Vulnerability Database Vulnerabilities #VU125891

#VU125891 Stored cross-site scripting in October CMS - CVE-2026-24907

Published: April 14, 2026


Vulnerability identifier: #VU125891
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-24907
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 JavaScript in the viewer's browser context.

The vulnerability exists due to cross-site scripting in the Event Log mail preview feature when rendering logged mail messages. A remote user can create a malicious mail template content entry to execute arbitrary JavaScript in the viewer's browser context.

Exploitation requires authenticated backend access with mail template editing permissions, and user interaction is required when a superuser views the specific Event Log entry.


Remediation

Install security update from vendor's website.

External links