CVE-2026-24907

October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting (XSS) vulnerability in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing, allowing JavaScript execution in the viewer's browser context. This issue has been fixed in versions 3.7.14 and 4.1.10. If users are unable to update immediately, workarounds include restricting mail template editing permissions to fully trusted administrators only and restricting Event Log viewing permissions to minimize exposure.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/octobercms/october/security/advisories/GHSA-j4j5-9x6g-rgxc	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

21 Apr 2026, 17:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
CPE		cpe:2.3:a:octobercms:october::::::::
References	~~() https://github.com/octobercms/october/security/advisories/GHSA-j4j5-9x6g-rgxc -~~	() https://github.com/octobercms/october/security/advisories/GHSA-j4j5-9x6g-rgxc - Vendor Advisory
First Time		Octobercms october Octobercms

14 Apr 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-14 18:16

Updated : 2026-06-17 10:23

NVD link : CVE-2026-24907

Mitre link : CVE-2026-24907

CVE.ORG link : CVE-2026-24907

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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