{"id":"CVE-2023-42659","aliases":["EUVD-2023-47092","GHSA-q7hc-4q25-xrfx"],"status":"published","title":"WS_FTP Server Arbitrary File Upload","description":"In WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been identified.  An authenticated Ad Hoc Transfer user has the ability to craft an API call which allows them to upload a file to a specified location on the underlying operating system hosting the WS_FTP Server application.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01079,"percentile":0.65486,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2023-11-07T15:13:40Z","modified":"2026-06-17T06:24:12Z","products":[{"vendor":"progress","product":"ws_ftp_server"},{"vendor":"progress software corporation","product":"ws_ftp server"}],"references":[{"url":"https://www.progress.com/ws_ftp","tags":["product","x_transferred","Product"]},{"url":"https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2023","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://github.com/advisories/GHSA-q7hc-4q25-xrfx"}],"sources":{"cve":[{"id":"CVE-2023-42659","title":"WS_FTP Server Arbitrary File Upload","description":"\nIn WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been identified.  An authenticated Ad Hoc Transfer user has the ability to craft an API call which allows them to upload a file to a specified location on the underlying operating system hosting the WS_FTP Server application.\n","status":"published","published":"2023-11-07T15:13:40.001Z","modified":"2024-09-04T15:24:41.092Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:35:17.812395Z"}],"euvd":[{"id":"EUVD-2023-47092","description":"\nIn WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been identified.  An authenticated Ad Hoc Transfer user has the ability to craft an API call which allows them to upload a file to a specified location on the underlying operating system hosting the WS_FTP Server application.\n","status":"published","published":"2023-11-07T15:13:40Z","modified":"2024-09-04T15:24:41Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","level":"critical"}],"updated_at":"2026-11-03T00:56:04.589959Z"}],"ghsa":[{"id":"GHSA-q7hc-4q25-xrfx","title":"\nIn WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been...","description":"\nIn WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been identified.  An authenticated Ad Hoc Transfer user has the ability to craft an API call which allows them to upload a file to a specified location on the underlying operating system hosting the WS_FTP Server application.\n","status":"published","published":"2023-11-14T21:30:54Z","modified":"2024-04-10T18:19:13Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:57:05.342619Z"}],"nvd":[{"id":"CVE-2023-42659","description":"\nIn WS_FTP Server versions prior to 8.7.6 and 8.8.4, an unrestricted file upload flaw has been identified.  An authenticated Ad Hoc Transfer user has the ability to craft an API call which allows them to upload a file to a specified location on the underlying operating system hosting the WS_FTP Server application.\n","status":"published","published":"2023-11-07T16:15:28.923Z","modified":"2026-06-17T06:24:12.133Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:08:43.669554Z"}]}}