{"id":"CVE-2021-43584","aliases":["EUVD-2021-30499","GHSA-3w6g-cv32-6cpq"],"status":"published","title":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios...","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.012,"percentile":0.6844,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2024-01-24T00:00:00Z","modified":"2026-10-20T10:54:08Z","products":[{"vendor":"nagios","product":"nagios_cross_platform_agent"}],"references":[{"url":"https://github.com/NagiosEnterprises/ncpa/issues/830","tags":["x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43584"},{"url":"https://github.com/advisories/GHSA-3w6g-cv32-6cpq"}],"sources":{"cve":[{"id":"CVE-2021-43584","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","status":"published","published":"2024-01-24T00:00:00Z","modified":"2025-06-16T19:40:17.34Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30499","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","status":"published","published":"2024-01-24T00:00:00Z","modified":"2025-06-16T19:40:17Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:23.224988Z"}],"ghsa":[{"id":"GHSA-3w6g-cv32-6cpq","title":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios...","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","status":"published","published":"2024-01-24T21:30:33Z","modified":"2024-02-09T05:12:18Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:55:35.197353Z"}],"nvd":[{"id":"CVE-2021-43584","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","status":"published","published":"2024-01-24T20:15:53.61Z","modified":"2026-06-17T04:11:10.62Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:08.163458Z"}],"osv":[{"id":"CVE-2021-43584","description":"DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.","status":"published","published":"2024-01-24T20:15:53.61Z","modified":"2026-10-20T10:54:08.852432737Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:21.877444Z"}]}}