wftpserver Wing FTP Server 4.3.8 Admin Interface code injection

Summaryinfo

A vulnerability identified as critical has been detected in wftpserver Wing FTP Server 4.3.8. Affected is an unknown function of the component Admin Interface. The manipulation leads to code injection. This vulnerability is documented as CVE-2022-50934. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in wftpserver Wing FTP Server 4.3.8. This issue affects some unknown functionality of the component Admin Interface. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Wing FTP Server versions 4.3.8 and below contain an authenticated remote code execution vulnerability that allows attackers to execute arbitrary PowerShell commands through the admin interface. Attackers can leverage a crafted Lua script payload with base64-encoded PowerShell to establish a reverse TCP shell by authenticating and sending a malicious request to the admin panel.

The weakness was released by notcos as 50720. The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2022-50934 since 01/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (50720). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• File Transfer Software

Vendor

• wftpserver

Name

• Wing FTP Server

Version

• 4.3.8

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion