{"id":"CVE-2020-4421","aliases":["EUVD-2020-25668","GHSA-c453-37mp-9fx2"],"status":"published","title":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user...","description":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.","severity":{"version":"3.0","score":5,"vector":"CVSS:3.0/A:L/I:L/AV:N/AC:H/S:U/C:L/PR:L/UI:N/RL:O/E:U/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-13","score":0.00621,"percentile":0.50361,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-290"],"published":"2020-05-06T13:45:19Z","modified":"2026-06-17T03:19:58Z","products":[{"vendor":"ibm","product":"websphere application server liberty"},{"vendor":"ibm","product":"websphere_application_server"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6205926","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/180084","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-4421"},{"url":"https://github.com/advisories/GHSA-c453-37mp-9fx2"}],"sources":{"cve":[{"id":"CVE-2020-4421","description":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.","status":"published","published":"2020-05-06T13:45:19.32Z","modified":"2024-09-17T02:10:42.194Z","cvss":[{"version":"3.0","score":5,"vector":"CVSS:3.0/A:L/I:L/AV:N/AC:H/S:U/C:L/PR:L/UI:N/RL:O/E:U/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:55.797746Z"}],"euvd":[{"id":"EUVD-2020-25668","description":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.","status":"published","published":"2020-05-06T13:45:19Z","modified":"2024-09-17T02:10:42Z","cvss":[{"version":"3.0","score":5,"vector":"CVSS:3.0/A:L/I:L/AV:N/AC:H/S:U/C:L/PR:L/UI:N/RL:O/E:U/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:28:43.354671Z"}],"ghsa":[{"id":"GHSA-c453-37mp-9fx2","title":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user...","description":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.","status":"published","published":"2022-05-24T17:17:20Z","modified":"2023-01-29T05:02:49Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:45:10.478665Z"}],"nvd":[{"id":"CVE-2020-4421","description":"IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.","status":"published","published":"2020-05-06T14:15:10.957Z","modified":"2026-06-17T03:19:58.187Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.0","score":5,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:05:59.718774Z"}]}}