{"id":"CVE-2021-20104","aliases":["EUVD-2021-7561","GHSA-2gq4-6723-j8cq"],"status":"published","title":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to...","description":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to insufficient sanitization of file attachments uploaded with forms through upload.php.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02168,"percentile":0.82394,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-06-29T15:31:01Z","modified":"2026-06-17T03:33:16Z","products":[{"vendor":"machform","product":"machform"}],"references":[{"url":"https://www.tenable.com/security/research/tra-2021-25%2Chttps://www.machform.com/blog-machform-16-released/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20104"},{"url":"https://www.tenable.com/security/research/tra-2021-25,https://www.machform.com/blog-machform-16-released/"},{"url":"https://github.com/advisories/GHSA-2gq4-6723-j8cq"}],"sources":{"cve":[{"id":"CVE-2021-20104","description":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to insufficient sanitization of file attachments uploaded with forms through upload.php.","status":"published","published":"2021-06-29T15:31:01Z","modified":"2024-08-03T17:30:07.637Z","updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2021-7561","description":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to insufficient sanitization of file attachments uploaded with forms through upload.php.","status":"published","published":"2021-06-29T15:31:01Z","modified":"2024-08-03T17:30:07Z","updated_at":"2026-11-03T03:25:09.841069Z"}],"ghsa":[{"id":"GHSA-2gq4-6723-j8cq","title":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to...","description":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to insufficient sanitization of file attachments uploaded with forms through upload.php.","status":"published","published":"2022-05-24T19:06:30Z","modified":"2023-01-30T05:00:34Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:13.539888Z"}],"nvd":[{"id":"CVE-2021-20104","description":"Machform prior to version 16 is vulnerable to unauthenticated remote code execution due to insufficient sanitization of file attachments uploaded with forms through upload.php.","status":"published","published":"2021-06-29T16:15:08.213Z","modified":"2026-06-17T03:33:16.673Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}