{"id":"CVE-2021-41566","aliases":["EUVD-2021-28582","GHSA-ccv5-px65-27x6"],"status":"published","title":"Tad TadTools - Arbitrary File Upload","description":"The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.","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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.02007,"percentile":0.80971,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-10-08T15:15:36Z","modified":"2026-06-17T04:08:39Z","products":[{"vendor":"tad","product":"tadtools"},{"vendor":"tadtools_project","product":"tadtools"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-5170-83472-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41566"},{"url":"https://github.com/advisories/GHSA-ccv5-px65-27x6"}],"sources":{"cve":[{"id":"CVE-2021-41566","title":"Tad TadTools - Arbitrary File Upload","description":"The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.","status":"published","published":"2021-10-08T15:15:36.568Z","modified":"2024-09-17T03:33:55.956Z","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":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-28582","description":"The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.","status":"published","published":"2021-10-08T15:15:36Z","modified":"2024-09-17T03:33:55Z","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":"2026-11-03T00:28:30.770637Z"}],"ghsa":[{"id":"GHSA-ccv5-px65-27x6","title":"The file extension of the TadTools file upload function fails to filter, thus remote attackers...","description":"The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.","status":"published","published":"2022-05-24T19:17:03Z","modified":"2023-01-30T05:02:36Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:40.912111Z"}],"nvd":[{"id":"CVE-2021-41566","description":"The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.","status":"published","published":"2021-10-08T16:15:07.947Z","modified":"2026-06-17T04:08:39.667Z","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":9.8,"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":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:59.689345Z"}]}}