{"id":"CVE-2021-26023","aliases":["EUVD-2021-12847","GHSA-cpp5-h3qh-vqxm"],"status":"published","title":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","description":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.25454,"percentile":0.97976,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-02-03T21:25:15Z","modified":"2026-06-17T03:42:45Z","products":[{"vendor":"nagios","product":"favorites"}],"references":[{"url":"https://www.nagios.com/products/security/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26023"},{"url":"https://github.com/advisories/GHSA-cpp5-h3qh-vqxm"}],"sources":{"cve":[{"id":"CVE-2021-26023","description":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","status":"published","published":"2021-02-03T21:25:15Z","modified":"2024-08-03T20:19:19.75Z","updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-12847","description":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","status":"published","published":"2021-02-03T21:25:15Z","modified":"2024-08-03T20:19:19Z","updated_at":"2026-11-03T03:24:51.962182Z"}],"ghsa":[{"id":"GHSA-cpp5-h3qh-vqxm","title":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","description":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","status":"published","published":"2022-05-24T17:40:55Z","modified":"2023-01-29T05:05:34Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:49.336023Z"}],"nvd":[{"id":"CVE-2021-26023","description":"The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.","status":"published","published":"2021-02-03T22:15:11.987Z","modified":"2026-06-17T03:42:45.25Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}