{"id":"CVE-2023-27397","aliases":["EUVD-2023-31173","GHSA-g497-rhxm-mc9f"],"status":"published","title":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1...","description":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.","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","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00915,"percentile":0.60585,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2023-05-23T00:00:00Z","modified":"2026-06-17T05:44:57Z","products":[{"vendor":"microengine","product":"mailform"},{"vendor":"microengine inc.","product":"microengine mailform"}],"references":[{"url":"https://microengine.jp/information/security_2023_05.html","tags":["x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN31701509/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27397"},{"url":"https://jvn.jp/en/jp/JVN31701509"},{"url":"https://github.com/advisories/GHSA-g497-rhxm-mc9f"}],"sources":{"cve":[{"id":"CVE-2023-27397","description":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.","status":"published","published":"2023-05-23T00:00:00Z","modified":"2025-01-31T13:55:13.137Z","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":"adp"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:35:26.261013Z"}],"euvd":[{"id":"EUVD-2023-31173","description":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.","status":"published","published":"2023-05-23T00:00:00Z","modified":"2025-01-31T13:55:13Z","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"}],"updated_at":"2026-11-03T00:04:08.578338Z"}],"ghsa":[{"id":"GHSA-g497-rhxm-mc9f","title":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1...","description":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.","status":"published","published":"2023-05-23T03:30:16Z","modified":"2024-04-04T04:18:07Z","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-434"],"updated_at":"2026-11-02T14:56:22.389253Z"}],"nvd":[{"id":"CVE-2023-27397","description":"Unrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload function and server save option are enabled, a remote attacker may save an arbitrary file on the server and execute it.","status":"published","published":"2023-05-23T02:15:09.57Z","modified":"2026-06-17T05:44:57.32Z","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":"primary"},{"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"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:08:03.200773Z"}]}}