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No exploitation reportedFix available

CVE-2023-42657

No exploitation reported by the sources we read.

  • Published2023-09-27
  • Fixed in8.8.2 · 8.7.4
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-09-2715:19CVE publishedNVD

Versions per branch

NVD · CISA-ADP
Progress ws ftp server
BranchAffectedFixed in
8.8≥ 8.8.0, < 8.8.28.8.2
8.7< 8.7.48.7.4
8.7≥ 8.7.0, < 8.7.48.7.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As ProgressSoftware, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Progress Software Corporation WS_FTP Serverother versions: affected
    Affected
    • ≥ 8.8.0, < 8.8.2fixed in 8.8.2semver
    • ≥ 8.7.0, < 8.7.4fixed in 8.7.4semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-09-27

Fix

  1. Update Progress ws ftp server to 8.8.2 · 8.7.4

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2024-09-24
  • CNACVSS 3.19.9known since 2026-10-23
  • NVDCVSS 3.19.6read 2026-10-23
  • CNAweakness (CWE)CWE-22known since 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score16.0 %read 2026-11-09
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Published
2023-09-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-vrp3-qmw4-rx8c

Frequently asked questions

What is CVE-2023-42657?

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.

Is CVE-2023-42657 actively exploited?

Active exploitation of CVE-2023-42657 has not been confirmed. Its EPSS score was 16.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-42657?

CVE-2023-42657 has a CVSS v3 base score of 9.6 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H.

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