CVE-2023-7312

Nagios Fusion < 4.2.0 Email Settings Stored XSS via SMTP/sendmail

Published Oct 30, 2025 CVSS 4.0 · 6.2 Medium EPSS 1.0% KEV · Not listed
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.

Remediation

Vendor Solution

Nagios addresses this vulnerability as "Stored XSS when adding Email Settings via SMTP," "Stored XSS when configuring Email Settings via sendmail," and "Fixed XSS in Admin->Email Settings."

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
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'}

Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 17, 2025, 9:36 PM
Reserved
Oct 17, 2025, 3:49 PM
Status
Analyzed
Published
Oct 30, 2025, 10:15 PM
Modified
Oct 18, 2026, 12:10 AM