CVE-2023-53689
Nagios Fusion < 4.2.0 License Information Reflected XSS
- State
- Published
- Severity
- 6.0 Medium
- Published
- Oct 30, 2025
- Updated
- Nov 17, 2025
- Reserved
- Oct 17, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.0 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
FusionNagios |
|
References
- https://www.nagios.com/products/security/#fusionvendor-advisorypatch
- https://www.nagios.com/changelog/nagios-fusion/release-notespatch
- https://www.vulncheck.com/advisories/nagios-fusion-license-information-reflected-xssthird-party-advisory
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