{"id":"CVE-2021-22122","aliases":["EUVD-2021-9278","GHSA-6xx4-8wj3-477v"],"status":"published","title":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0...","description":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version before 6.2.4 may allow an unauthenticated, remote attacker to perform a reflected cross site scripting attack (XSS) by injecting malicious payload in different vulnerable API end-points.","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":0.1052,"percentile":0.95832,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-02-08T15:55:39Z","modified":"2026-06-17T03:36:39Z","exploits":[{"source":"nuclei","id":"CVE-2021-22122","title":"FortiWeb - Cross Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-22122.yaml"}],"products":[{"vendor":"fortinet","product":"fortinet fortiweb"},{"vendor":"fortinet","product":"fortiweb"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-20-122","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22122"},{"url":"https://github.com/advisories/GHSA-6xx4-8wj3-477v"}],"sources":{"cve":[{"id":"CVE-2021-22122","description":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version before 6.2.4 may allow an unauthenticated, remote attacker to perform a reflected cross site scripting attack (XSS) by injecting malicious payload in different vulnerable API end-points.","status":"published","published":"2021-02-08T15:55:39Z","modified":"2024-10-25T14:00:24.537Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9278","description":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version before 6.2.4 may allow an unauthenticated, remote attacker to perform a reflected cross site scripting attack (XSS) by injecting malicious payload in different vulnerable API end-points.","status":"published","published":"2021-02-08T15:55:39Z","modified":"2024-10-25T14:00:24Z","updated_at":"2026-11-03T00:05:18.633679Z"}],"ghsa":[{"id":"GHSA-6xx4-8wj3-477v","title":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0...","description":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version before 6.2.4 may allow an unauthenticated, remote attacker to perform a reflected cross site scripting attack (XSS) by injecting malicious payload in different vulnerable API end-points.","status":"published","published":"2022-05-24T17:41:18Z","modified":"2023-01-29T05:05:37Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:50.403728Z"}],"nvd":[{"id":"CVE-2021-22122","description":"An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version before 6.2.4 may allow an unauthenticated, remote attacker to perform a reflected cross site scripting attack (XSS) by injecting malicious payload in different vulnerable API end-points.","status":"published","published":"2021-02-08T16:15:12.08Z","modified":"2026-06-17T03:36:39.267Z","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"}]}}