{"id":"CVE-2023-42657","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-42657","generatedAt":"2026-10-27T23:55:42.958Z","title":"In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a directory traversal vulnerability was discovered.","description":"\n\n\nIn WS_FTP Server versions prior to 8.7.4 and 8.8.2, a directory traversal vulnerability was discovered.  An attacker could leverage this vulnerability to perform file operations (delete, rename, rmdir, mkdir) on files and folders outside of their authorized WS_FTP folder path.  Attackers could also escape the context of the WS_FTP Server file structure and perform the same level of operations (delete, rename, rmdir, mkdir) on file and folder locations on the underlying operating system.\n","published":"2023-09-27T15:19:33.000Z","lastModified":"2026-06-17T06:24:12.000Z","status":"Modified","sourceIdentifier":"security@progress.com","cvss":{"version":"3.1","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H"},"cwe":["CWE-22"],"affected":["progress/ws ftp server"],"epss":{"score":0.16008,"percentile":0.96886,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 16.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023","tags":["Vendor Advisory"],"source":"security@progress.com"},{"url":"https://www.progress.com/ws_ftp","tags":["Product"],"source":"security@progress.com"},{"url":"https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.progress.com/ws_ftp","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-42657","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}