CVE-2023-42657: WS_FTP Server Directory Traversal
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 1 public report, the first from .
- How likely is exploitation in the next 30 days?
- 16%
EPSS score, percentile 96.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.9 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- from 8.8.0 to before 8.8.2
- from 8.7.0 to before 8.7.4
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
WS_FTP Server Directory Traversal
In 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.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | from 8.8.0 to before 8.8.2 |
| Affected | from 8.7.0 to before 8.7.4 |
Versions not listed are: affected.
Source: CVE List, as of . About the data.
Weakness
CWE-22, 1 CAPEC
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Attack patterns (CAPEC)
- CAPEC-126: Path Traversal
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
1
Known exploited Progress vulnerabilities
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- CVE-2024-6670: Progress WhatsUp Gold SQL Injection Vulnerability
- CVE-2024-4358: Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability