{"id":"CVE-2019-16151","aliases":["EUVD-2025-7234","GHSA-c55x-8r3h-3586"],"status":"published","title":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS...","description":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim's browser context.\r\nThis happens when the FortiGate has web filtering and category override enabled/configured.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:X/RC:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00372,"percentile":0.31413,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-03-21T16:02:01Z","modified":"2026-06-17T02:21:46Z","products":[{"vendor":"fortinet","product":"fortios"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-19-301","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16151"},{"url":"https://github.com/advisories/GHSA-c55x-8r3h-3586"}],"sources":{"cve":[{"id":"CVE-2019-16151","description":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim's browser context.\r\nThis happens when the FortiGate has web filtering and category override enabled/configured.","status":"published","published":"2025-03-21T16:02:01.913Z","modified":"2025-03-21T16:22:17.554Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:X/RC:X","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:23.189113Z"}],"euvd":[{"id":"EUVD-2025-7234","description":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim's browser context.\r\nThis happens when the FortiGate has web filtering and category override enabled/configured.","status":"published","published":"2025-03-21T16:02:01Z","modified":"2025-03-21T16:22:17Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:X/RC:X","level":"medium"}],"updated_at":"2026-11-02T20:52:56.049523Z"}],"ghsa":[{"id":"GHSA-c55x-8r3h-3586","title":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS...","description":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim's browser context.\nThis happens when the FortiGate has web filtering and category override enabled/configured.","status":"published","published":"2025-03-21T18:31:35Z","modified":"2025-03-21T18:31:41Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:00:23.592031Z"}],"nvd":[{"id":"CVE-2019-16151","description":"An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim's browser context.\r\nThis happens when the FortiGate has web filtering and category override enabled/configured.","status":"published","published":"2025-03-21T16:15:13.21Z","modified":"2026-06-17T02:21:46.47Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:49.934131Z"}]}}