CVE-2023-53690: fusion XSS — Fix

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.

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
nagios	fusion	< 4.2.0

References

Advisories & Patches

https://www.nagios.com/products/security/#fusion

Other References

https://www.nagios.com/changelog/nagios-fusion/ https://www.vulncheck.com/advisories/nagios-fusion-ldap-ad-integration-stored-xss

Frequently Asked Questions

What is CVE-2023-53690? +

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. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2023-53690? +

CVE-2023-53690 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-53690? +

CVE-2023-53690 affects products from nagios, specifically: fusion. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53690? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-53690