CVE Tools

CVE-2023-7312

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

Published: Oct 30, 2025Updated: Nov 6, 2025 Sources: CVE List NVD BDUCWE-79
4.8CVSSMEDIUM

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

Affected Products

nagioscommercialUSEnterprise Softwareaka nagios xi
nagios enterprises llccommercialUSEnterprise Softwareaka nagios xi, nagios log server, nagios fusion

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

and 2 more references View all →

Timeline

Published
Oct 30, 2025
Last Updated
Nov 6, 2025

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