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CVE-2026-44258— efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution

Quick assessment

Affected

efwGrp efw4.X

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.

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之前版本存在操作系统命令注入漏洞，该漏洞源于elfinder_paste未验证dst参数，可能导致路径遍历绕过安全控制。

AI Predicted 7.5 Difficulty: Easy EPSS 0.47% · P40 Updated May 15, 2026

Possible ATT&CK Techniques 2 AI

T1083 · File and Directory Discovery T1564 · Hide Artifacts

Affected Version Matrix 1

Vendor	Product	Version Range	Status
efwGrp	efw4.X	`< 4.08.010`	affected

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I. Basic Information for CVE-2026-44258

Vulnerability Information

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Vulnerability Title

efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution

Source: CVE Program / CVE List V5

Vulnerability Description

efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the elfinder_checkRisk function validates target and targets for path traversal and home containment, but does not validate the dst (destination) parameter used by elfinder_paste. An attacker can copy or move files from within the home directory to any arbitrary destination by setting dst to a base64-encoded traversal path. This bypasses the protected=true security control. This vulnerability is fixed in 4.08.010.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

Source: CVE Program / CVE List V5

Vulnerability Title

EFW Framework 操作系统命令注入漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
efwGrp	efw4.X	< 4.08.010	-

II. Public POCs for CVE-2026-44258

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-44258

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Vendor Advisories for CVE-2026-44258 (1)

🔗 Path Traversal via Unchecked dst Parameter leads to Remote Code Execution · Advisory · efwGrp/efw4.X · GitHub Read full article x_refsource_CONFIRM

https://www.cve.org/CVERecord?id=CVE-2026-44258

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-2026-44257		efw4.X: RCE via zipslip

IV. Related Vulnerabilities

Same product: efw4.X

Same vendor: efwGrp

Same weakness: CWE-78