CVE-2026-44257— efw4.X: RCE via zipslip
Possible ATT&CK Techniques 3AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application T1505 · Server Software ComponentGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-44257
Vulnerability Information
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Vulnerability Title
efw4.X: RCE via zipslip
Source: NVD (National Vulnerability Database)
Vulnerability Description
efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, efw.file.FileManager.unZip writes zip entries to disk using new File(baseDir, zipEntry.getName()) with no canonical-path check. An entry name such as ../../../pwned.jsp escapes the intended extraction directory and lands anywhere the Tomcat process can write — including the servlet context root. Combined with the framework's multipart /uploadServlet and an event that calls file.saveUploadFiles + FileManager.unZip, a remote attacker with no credentials drops a JSP webshell and executes arbitrary commands as the Tomcat user. This vulnerability is fixed in 4.08.010.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
EFW Framework 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EFW Framework是efw group开源的一个基于Ajax和服务端JavaScript的企业级Web开发框架。 EFW Framework 4.08.010之前版本存在命令注入漏洞，该漏洞源于FileManager.unZip未进行规范路径检查，可能导致路径遍历和任意命令执行。
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
II. Public POCs for CVE-2026-44257
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- https://github.com/efwGrp/efw4.X/security/advisories/GHSA-q7jx-7x5r-r9f6x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-44257
Same Patch Batch · efwGrp · 2026-05-12 · 4 CVEs total
| CVE-2026-44260 | 8.1 HIGH | efw4.X: readonly Flag Not Enforced Server-Side |
| CVE-2026-44259 | 4.6 MEDIUM | efw4.X: Stored XSS via previewServlet |
| CVE-2026-44258 | efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution |
IV. Related Vulnerabilities
V. Comments for CVE-2026-44257
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