CVE-2026-44403— Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
Possible ATT&CK Techniques 1AI
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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
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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IV. Related Vulnerabilities
Same vendor: Wing FTP Server
- CVE-2020-37079
Wing FTP Server < 6.2.7 - Cross-site Request Forgery - CVE-2020-37032
Wing FTP Server 6.3.8 - Remote Code Execution - CVE-2023-37875
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
- CVE-2018-25320
ACL Analytics 11.x - 13.0.0.579 Arbitrary Code Execution - CVE-2021-47952
python jsonpickle 2.0.0 Remote Code Execution via py/repr - CVE-2021-47964
Schlix CMS 2.2.6-6 Remote Code Execution via core.blockmanag - CVE-2026-44717
MCP Calculate Server: Prompt Injection to RCE - CVE-2026-41258
OpenMRS: Stored Velocity SSTI to RCE via ConceptReferenceRan
V. Comments for CVE-2026-44403
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