CVE-2020-37032CWE-78

Wing FTP Server 6.3.8 - Remote Code Execution

High · published January 30, 2026

CVSS v4.0
8.6
EPSS
1%
Percentile
68.1
In the wild
Unconfirmed
What it is

⚡ An authenticated user can send a single malicious POST request that runs commands on your server! This remote code execution vulnerability in Wing FTP Server 6.3.8 is a sneaky way for attackers to gain control. 🔥 Think of it like a hotel concierge who takes your word for it and grants access to any room in the building without checking your ID — once in, an attacker can trigger commands at will, just like tossing out a room service order, but much more sinister! This vulnerability could be absolutely devastating, allowing attackers to execute any system command they desire. If exploited, they could manipulate or exfiltrate sensitive data, install malicious software, or even take control of the entire server!

Put simply

Think of it like a hotel concierge who takes your word for it and grants access to any room in the building without checking your ID — once in, an attacker can trigger commands at will, just like tossing out a room service order, but much more sinister! This remote code execution vulnerability exists in the Lua-based web console of Wing FTP Server, where an attacker could exploit the os.execute() function with crafted POST requests, bypassing intended restrictions.

What to do

This vulnerability could be absolutely devastating, allowing attackers to execute any system command they desire. If exploited, they could manipulate or exfiltrate sensitive data, install malicious software, or even take control of the entire server! To secure your system, immediately update Wing FTP Server to version 6.3.9 or later. Additionally, review access controls and limit user permissions to the bare minimum needed for operation. Regularly monitor logs for suspicious activity to catch any unauthorized access attempts early. You've got this! With these steps, you're on your way to locking down your server and maintaining hero status! 🛡️

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01208 · 68.1th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-01-30T22:07Z
EPSS history
Timeline
  • 30 JAN 22:07Z
    Wing FTP Server 6.3.8 - Remote Code Execution
    cvelistv5