Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or configuring Email Settings. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add or modify SMTP/email settings or manipulate the sendmail configuration fields could persist a malicious payload that executes in the context of other users' browsers.
History

Thu, 06 Nov 2025 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}


Mon, 03 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 31 Oct 2025 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Nagios
Nagios fusion
Vendors & Products Nagios
Nagios fusion

Thu, 30 Oct 2025 21:30:00 +0000

Type Values Removed Values Added
Description Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or configuring Email Settings. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add or modify SMTP/email settings or manipulate the sendmail configuration fields could persist a malicious payload that executes in the context of other users' browsers.
Title Nagios Fusion < 4.2.0 Email Settings Stored XSS via SMTP/sendmail
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-10-30T21:19:51.723Z

Updated: 2025-11-03T18:37:04.782Z

Reserved: 2025-10-17T15:49:12.091Z

Link: CVE-2023-7312

cve-icon Vulnrichment

Updated: 2025-11-03T18:37:01.424Z

cve-icon NVD

Status : Analyzed

Published: 2025-10-30T22:15:42.930

Modified: 2025-11-06T18:20:11.240

Link: CVE-2023-7312

cve-icon Redhat

No data.