CVE-2026-44403— Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
Quick assessment
Affected
Wing FTP Server Wing FTP Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Wing FTP Server是Wing FTP Server开源的一套跨平台的FTP服务器软件。 Wing FTP Server 8.1.2版本存在代码注入漏洞，该漏洞源于会话序列化机制中域管理员mydirectory字段注入任意Lua代码，可能导致经过身份验证的管理员执行远程代码。
Public Exploits 1
ExploitDB · 1
EDB-52589 [remote]
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Wing FTP Server | Wing FTP Server | 8.1.2 |
affected |
8.1.3 |
unaffected |
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I. Basic Information for CVE-2026-44403
Vulnerability Information
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Vulnerability Title
Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
Source: CVE Program / CVE List V5
Vulnerability Description
Wing FTP Server before 8.1.3 contains an authenticated remote code execution vulnerability in the session serialization mechanism that allows authenticated administrators to inject arbitrary Lua code through the domain admin mydirectory field. Attackers can exploit unsafe serialization of session values into Lua source code without proper escaping of closing delimiters, causing the injected code to be executed when the poisoned session is loaded via loadfile().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Wing FTP Server 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wing FTP Server是Wing FTP Server开源的一套跨平台的FTP服务器软件。 Wing FTP Server 8.1.2版本存在代码注入漏洞，该漏洞源于会话序列化机制中域管理员mydirectory字段注入任意Lua代码，可能导致经过身份验证的管理员执行远程代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Wing FTP Server | Wing FTP Server | 8.1.2 | - |
|
II. Public POCs for CVE-2026-44403
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-44403 (1)
Vendor Pages for CVE-2026-44403 (1)
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Wing FTP Server History release-notes
IV. Related Vulnerabilities
Same vendor: Wing FTP Server
-
CVE-2020-37079
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Cross-Site Scripting Vulnerability in Wing FTP Server <= 7. -
CVE-2023-37878
Insecure Default Permissions in Wing FTP Server <= 7.2.0 -
CVE-2023-37879
Exposed Session Variable in Wing FTP Server <= 7.2.0
Same weakness: CWE-94
-
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