{"id":"CVE-2021-43064","aliases":["EUVD-2021-30017","GHSA-56m9-2h59-x23m"],"status":"published","title":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4...","description":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0063,"percentile":0.50549,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2021-12-08T12:33:18Z","modified":"2026-06-17T04:10:27Z","products":[{"vendor":"fortinet","product":"fortinet fortiweb"},{"vendor":"fortinet","product":"fortiweb"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-21-168","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43064"},{"url":"https://github.com/advisories/GHSA-56m9-2h59-x23m"}],"sources":{"cve":[{"id":"CVE-2021-43064","description":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.","status":"published","published":"2021-12-08T12:33:18Z","modified":"2024-10-25T13:40:38.183Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30017","description":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.","status":"published","published":"2021-12-08T12:33:18Z","modified":"2024-10-25T13:40:38Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:05:19.027476Z"}],"ghsa":[{"id":"GHSA-56m9-2h59-x23m","title":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4...","description":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.","status":"published","published":"2021-12-09T00:00:58Z","modified":"2023-02-01T05:06:48Z","cwes":["CWE-601"],"updated_at":"2026-11-02T14:50:25.548742Z"}],"nvd":[{"id":"CVE-2021-43064","description":"A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.","status":"published","published":"2021-12-08T13:15:08.073Z","modified":"2026-06-17T04:10:27.65Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}