Wing FTP Server 發現 CVE-2026-105420 路徑遍歷漏洞 可導致遠端程式執行
CVE-2026-105420 - Path Traversal in Wing WFTP Server leading to Remote Code Execution
Wing FTP Server 發現 CVE-2026-105420 路徑遍歷漏洞，允許具管理員許可權的攻擊者在系統上寫入檔案並執行任意程式。
- 漏洞原理：未驗證使用者基底資料夾，允許新增目錄逃逸至基底外。
此漏洞可使管理員利用路徑遍歷執行任意程式，並可在系統層級取得 root 許可權，請立即檢查並更新。
Wing FTP Server does not verify user's base folder. An attacker with admin privileges can add user directories via scripts, allowing the added directories to escape the base folder. This allows the attacker to write files on the system and can lead to remote code execution with process owner privileges.Critically, since the installation guide mentions running the command with `sudo`, the files are created as “root.” This issue was fixed in version 8.2.6.
Impact
Affected Products
The following products are affected by CVE-2026-105420
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
| ID | Vendor | Product | Action |
|---|---|---|---|
| 1 | Wing_soft_technology | wing_ftp_server |
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | 4bb8329e-dd38-46c1-aafb-9bf32bcb93c6 |
Update Wing FTP Server to version 8.2.6 or later to fix directory traversal.
- Update Wing FTP Server to version 8.2.6.
- Apply vendor patches if available.
- Verify directory restrictions are enforced.
- Limit administrator privileges.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-105420 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.