{"id":"CVE-2023-53689","state":"PUBLISHED","title":"Nagios Fusion < 4.2.0 License Information Reflected XSS","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.","publishedAt":"2025-10-30T21:20:59.302Z","updatedAt":"2025-11-17T21:36:22.771Z","severity":{"score":6,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["Nagios Fusion"],"affected":[{"vendor":"Nagios","product":"Fusion","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.2.0","versionType":"semver"}],"modules":["License Information"]}],"references":["https://www.nagios.com/products/security/#fusion","https://www.nagios.com/changelog/nagios-fusion/","https://www.vulncheck.com/advisories/nagios-fusion-license-information-reflected-xss"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53689.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53689","state":"PUBLISHED","datePublished":"2025-10-30T21:20:59.302Z","dateUpdated":"2025-11-17T21:36:22.771Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2025-10-17T15:49:31.356Z"},"containers":{"cna":{"title":"Nagios Fusion < 4.2.0 License Information Reflected XSS","descriptions":[{"lang":"en","value":"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. 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