{"id":"CVE-2020-5188","aliases":["GHSA-vjcm-j85r-7p68"],"url":"https://o3.security/vulnerability/CVE-2020-5188","summary":"DNN File Upload Vulnerability","details":"DNN (formerly DotNetNuke) through 9.4.4 has a File upload vulnerability via bypassing client-side file extension check ","published":"2020-02-24T15:15:11.863Z","modified":"2026-07-08T23:35:29.886761Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"NuGet","name":"DotNetNuke.Core","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://medium.com/%40SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175"},{"type":"ADVISORY","url":"https://github.com/dnnsoftware/Dnn.Platform/releases"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/156484/DotNetNuke-CMS-9.5.0-File-Extension-Check-Bypass.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5188"},{"type":"PACKAGE","url":"https://github.com/dnnsoftware/Dnn.Platform"},{"type":"WEB","url":"https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:35:29.886761Z"}}