{"id":"CVE-2021-3824","aliases":["EUVD-2021-27073","GHSA-hqrg-vp62-hmj7"],"status":"published","title":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script...","description":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.","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":"2026-11-10","score":0.00746,"percentile":0.55166,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79","CWE-84"],"published":"2021-09-23T14:53:51Z","modified":"2026-06-17T04:05:50Z","products":[{"vendor":"openvpn","product":"openvpn_access_server"}],"references":[{"url":"https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-9-5","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3824"},{"url":"https://github.com/advisories/GHSA-hqrg-vp62-hmj7"}],"sources":{"cve":[{"id":"CVE-2021-3824","description":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.","status":"published","published":"2021-09-23T14:53:51Z","modified":"2024-08-03T17:09:09.578Z","cwes":["CWE-84"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-27073","description":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.","status":"published","published":"2021-09-23T14:53:51Z","modified":"2024-08-03T17:09:09Z","updated_at":"2026-11-03T03:25:11.376657Z"}],"ghsa":[{"id":"GHSA-hqrg-vp62-hmj7","title":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script...","description":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.","status":"published","published":"2022-05-24T19:15:33Z","modified":"2023-01-30T05:02:18Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:36.658869Z"}],"nvd":[{"id":"CVE-2021-3824","description":"OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.","status":"published","published":"2021-09-23T15:15:07.973Z","modified":"2026-06-17T04:05:50.577Z","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-84","CWE-79"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}