CVE-2023-42659

8.8 highEPSS 0.9%

High (8.8) in progress ws ftp server. EPSS 0.9% chance of exploitation in the next 30 days.

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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2023-11-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

progress:ws_ftp_server

References

https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2023
https://www.progress.com/ws_ftp
https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2023
https://www.progress.com/ws_ftp

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