{"id":"CVE-2021-33224","aliases":["EUVD-2021-19936","GHSA-74cc-qrjm-qwjc"],"status":"published","title":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute...","description":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.","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":0.00733,"percentile":0.54811,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2023-02-24T00:00:00Z","modified":"2026-07-09T01:16:54Z","products":[{"vendor":"umbraco","product":"umbraco_forms"}],"references":[{"url":"https://our.umbraco.com/packages/developer-tools/umbraco-forms","tags":["x_transferred","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33224"},{"url":"http://umbraco.com"},{"url":"https://github.com/advisories/GHSA-74cc-qrjm-qwjc"}],"sources":{"cve":[{"id":"CVE-2021-33224","description":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.","status":"published","published":"2023-02-24T00:00:00Z","modified":"2026-07-09T00:13:40.237Z","updated_at":"2026-11-02T14:33:10.555814Z"}],"euvd":[{"id":"EUVD-2021-19936","description":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.","status":"published","published":"2023-02-24T00:00:00Z","modified":"2026-07-09T00:13:40Z","updated_at":"2026-11-02T18:20:09.112703Z"}],"ghsa":[{"id":"GHSA-74cc-qrjm-qwjc","title":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute...","description":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.","status":"published","published":"2023-02-24T18:30:27Z","modified":"2023-03-14T05:07:09Z","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":"2026-11-02T14:54:20.362756Z"}],"nvd":[{"id":"CVE-2021-33224","description":"File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.","status":"published","published":"2023-02-24T16:15:11.367Z","modified":"2026-07-09T01:16:54.173Z","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"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:07.323379Z"}]}}