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Wing Ftp ServerApplication · Wftpserver

CVE-2023-37879

HIGH · 7.5 CVSS v3.1 Published 2023-09-12
Fix available
A fix is available. Upgrade to after 7.2.0 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Insecure storage of sensitive information in Wing FTP Server (User Web Client) allows information elicitation.This issue affects Wing FTP Server: <= 7.2.0.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Wing FTP Server versions 7.2.0 and below store sensitive information insecurely in the User Web Client component, allowing authenticated or unauthenticated attackers to elicitate this data. The vulnerability involves improper handling of credentials or personal data in storage.

MitigationUpgrade Wing FTP Server to a version newer than 7.2.0. If upgrading is not immediately possible, review and harden file/database permissions on the server and ensure the web client is not exposed to untrusted networks.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Wing Ftp ServerApplication
Affected:<= 7.2.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Wing FTP Server installation
    Locate the Wing FTP Server installation directory and locate the executable or service. Common locations include C:\Program Files\WingFTP Server or /opt/wingftpd/ on Linux. Check for the main executable (wingftpd.exe or wingftpd).
    Affected if Wing FTP Server is installed on the system
  2. Determine installed version
    Open the Wing FTP Server administrative console (usually accessible via web browser on port 5466 by default) or check the software About/Help section. Alternatively, check the executable properties or the version.txt file in the installation directory.
    Affected if The installed version is 7.2.0 or any version below 7.2.0
  3. Verify User Web Client is enabled
    Log into the Wing FTP Server administrative console and navigate to the Domain settings or Web Client settings. Check if the User Web Client interface is enabled and accessible (typically on port 80, 443, or 8080).
    Affected if The User Web Client is enabled and publicly or semi-publicly accessible
  4. Check web client data storage locations
    Inspect the 'webclient' or 'www' subdirectory within the Wing FTP Server installation folder. Look for configuration files, session files, or data storage that may contain credentials or personal user information stored in plain text or with weak protection.
    Affected if Sensitive credentials or personal data are found stored without adequate encryption in the web client data directory
  5. Assess network exposure
    Verify which network interfaces and IP addresses the web client is bound to. Check firewall rules and port listeners to determine if the web client port is exposed to untrusted networks or the internet.
    Affected if The User Web Client is accessible from untrusted networks or the internet without proper access controls

A system is affected if Wing FTP Server version 7.2.0 or below is installed AND the User Web Client component is enabled and accessible, with sensitive data stored in insecure locations accessible to attackers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 7.2.0
Interim mitigation

Upgrade Wing FTP Server to a version newer than 7.2.0. If upgrading is not immediately possible, review and harden file/database permissions on the server and ensure the web client is not exposed to untrusted networks.

Recommended fix Moderate confidence

Version 7.2.1 or later (verify exact fixed release on vendor website)

  1. 1. Check the current Wing FTP Server version by accessing the administration console
  2. 2. Navigate to the vendor website (www.wftpserver.com) to identify the latest stable release that addresses CVE-2023-37879
  3. 3. Review the release notes or changelog for version 7.2.1 or later to confirm the security fix for CWE-922 (Insecure Storage of Sensitive Information)
  4. 4. Create a full backup of the Wing FTP Server configuration, user data, and settings
  5. 5. Schedule a maintenance window for the upgrade
  6. 6. Download the latest version from the official vendor website
  7. 7. Stop the Wing FTP Server service before upgrading
  8. 8. Install the updated version following the vendor's upgrade documentation
Caveat Review vendor release notes for any configuration or migration requirements between 7.2.0 and the target upgrade version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Wing Ftp Server Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-37879 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data