CVE-2023-42657
9.9
CRITICAL · CVSS 3.1 · EPSS 16.2% (pctl 97)
Patch early
EPSS 16.2% — above the 10% action threshold.
Description
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.
Scoring
| CVSS | 9.9 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 16.22% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-22 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2023-09-27 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| progress | ws ftp server |
References
→ the Explorer · watch your stack · NVD