CVE-2023-42659 json
WS_FTP Server Arbitrary File Upload
published 2023-11-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-47092
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Progress Software Corporation WS_FTP Server 8.7.6, 8.8.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Progress Software Corporation WS_FTP Server
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
community.progress.com
/s/article/WS-FTP-Server-Service-Pack-November-2023
vendor-advisory
-
progress.com
/ws_ftp
product
Sources
- CVE List CVE-2023-42659
- NVD CVE-2023-42659
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