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CVE-2023-53690

Nagios Fusion < 4.2.0 LDAP/AD Integration Stored XSS

Published: Oct 30, 2025Updated: Nov 6, 2025 Sources: CVE List NVD BDUCWE-79
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
0.7%
Top 51.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability in the LDAP/AD authentication-server configuration. 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 authentication servers via LDAP/AD integration 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
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

FusionNagios
On-premWeb App
Enterprise Software / itsm-monitoring
fusionnagios
On-premWeb App
Enterprise Software / itsm-monitoring
Nagios FusionNagios Enterprises LLC
On-prem
Enterprise Software / itsm-monitoring
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
View detailed technique mapping

References

https://www.nagios.com/products/security/#fusion
nagios.com
https://www.nagios.com/changelog/nagios-fusion/
nagios.com
https://www.vulncheck.com/advisories/nagios-fusion-ldap-ad-integration-stored-xss
vulncheck.com
and 2 more references View all →

Timeline

Published
Oct 30, 2025
Last Updated
Nov 6, 2025

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