Medium severity4.8NVD Advisory· Published Oct 30, 2025· Updated Jun 17, 2026
CVE-2023-53689
CVE-2023-53689
Description
Nagios Fusion versions prior to 4.2.0 contain a reflected cross-site scripting (XSS) vulnerability in the license key configuration flow that can result in execution of attacker-controlled script in the browser of a user who follows a crafted URL. While the application server itself is not directly corrupted by the reflected XSS, the resulting browser compromise can lead to credential/session theft and unauthorized administrative actions.
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Affected products
3Patches
Vulnerability mechanics
References
3- www.nagios.com/products/security/nvdVendor Advisory
- www.vulncheck.com/advisories/nagios-fusion-license-information-reflected-xssnvdThird Party Advisory
- www.nagios.com/changelog/nagios-fusion/nvdRelease Notes
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