{"id":"CVE-2021-20354","aliases":["EUVD-2021-7772","GHSA-qq58-vj5v-jxhv"],"status":"published","title":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse...","description":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/I:N/UI:N/A:N/AV:N/PR:N/AC:H/S:U/C:H/RL:O/RC:C/E:U","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.04097,"percentile":0.90886,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2021-02-18T15:10:45Z","modified":"2026-06-17T03:33:43Z","products":[{"vendor":"ibm","product":"websphere application server"},{"vendor":"ibm","product":"websphere_application_server"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6415959","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/194883","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20354"},{"url":"https://github.com/advisories/GHSA-qq58-vj5v-jxhv"}],"sources":{"cve":[{"id":"CVE-2021-20354","description":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.","status":"published","published":"2021-02-18T15:10:45.009Z","modified":"2024-09-16T20:57:59.187Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/I:N/UI:N/A:N/AV:N/PR:N/AC:H/S:U/C:H/RL:O/RC:C/E:U","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-7772","description":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.","status":"published","published":"2021-02-18T15:10:45Z","modified":"2024-09-16T20:57:59Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/I:N/UI:N/A:N/AV:N/PR:N/AC:H/S:U/C:H/RL:O/RC:C/E:U","level":"medium"}],"updated_at":"2026-11-03T00:55:09.505787Z"}],"ghsa":[{"id":"GHSA-qq58-vj5v-jxhv","title":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse...","description":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.","status":"published","published":"2022-05-24T17:42:37Z","modified":"2023-01-29T05:06:38Z","cwes":["CWE-22"],"updated_at":"2026-11-02T14:46:04.414181Z"}],"nvd":[{"id":"CVE-2021-20354","description":"IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.","status":"published","published":"2021-02-18T15:15:14.343Z","modified":"2026-06-17T03:33:43.84Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:C/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:50.031227Z"}]}}