CVE-2023-42659

highpriority · track · 35EPSS 0.009 · 59 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.90% (59th) EPSS

CVSS 8.8 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.1

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:Lsecondary · ENISA EU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:Lsecondary · security@progress.comexploitability 3.1 · impact 5.3

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-434USprimary

affected products (4)

Products and version ranges known to be affected.

Progress Software Corporation WS_FTP Server8.7.0 → 8.7.6enisa_euvdEU
Progress Software Corporation WS_FTP Server8.8.0 → 8.8.4enisa_euvdEU
progress ws ftp server< 8.7.6nvdUScpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:*
progress ws ftp server8.8.0 → 8.8.4nvdUScpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2849Progress Software WS_FTP: Schwachstelle ermöglicht Manipulation von DateienDeutsch2023-11-07csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Progress Software WS_FTP ausnutzen, um Dateien zu manipulieren.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd cert_bund NVD CVE.org MITRE

published 2023-11-07modified 2026-06-17

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+5024 more

references (8)

External citations — patches, advisories, analysis.

scry

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