{"id":"CVE-2021-26102","aliases":["EUVD-2021-12923","GHSA-wwq6-xmjh-4f52"],"status":"published","title":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all...","description":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.19721,"percentile":0.97436,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-22","CWE-305"],"published":"2024-12-19T13:56:38Z","modified":"2026-06-17T03:42:51Z","exploits":[{"source":"pocgithub","id":"SleepyCofe/CVE-2021-26102","title":"SleepyCofe/CVE-2021-26102","date":"2021-12-09","url":"https://github.com/SleepyCofe/CVE-2021-26102"}],"products":[{"vendor":"fortinet","product":"fortiwan"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-21-048","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26102"},{"url":"https://github.com/advisories/GHSA-wwq6-xmjh-4f52"}],"sources":{"cve":[{"id":"CVE-2021-26102","description":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.","status":"published","published":"2024-12-19T13:56:38.177Z","modified":"2024-12-19T15:17:08.639Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-305"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-12923","description":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.","status":"published","published":"2024-12-19T13:56:38Z","modified":"2024-12-19T15:17:08Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C","level":"critical"}],"updated_at":"2026-11-03T00:04:34.09119Z"}],"ghsa":[{"id":"GHSA-wwq6-xmjh-4f52","title":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all...","description":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.","status":"published","published":"2024-12-19T15:31:11Z","modified":"2025-01-21T21:31:50Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-22","CWE-305"],"updated_at":"2026-11-02T14:59:37.435968Z"}],"nvd":[{"id":"CVE-2021-26102","description":"A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.","status":"published","published":"2024-12-19T14:15:05.38Z","modified":"2026-06-17T03:42:51.81Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-305","CWE-22"],"updated_at":"2026-11-02T14:07:08.629518Z"}]}}