CVE-2026-44257 Details
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.
A remote code execution vulnerability exists in efw4.X versions prior to 4.08.010. The issue arises in the file management component, where the unzipping function writes zip entries to disk without proper path validation. This flaw allows an attacker to craft a zip file that escapes the intended extraction directory and places a malicious JSP web shell in a location writable by the Tomcat process, such as the servlet context root. Once the web shell is uploaded, the attacker can execute arbitrary commands on the server as the Tomcat user.
Users should update to efw4.X version 4.08.010 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 12, 2026CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/efwGrp/efw4.X/security/advisories/GHSA-q7jx-7x5r-r9f6 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/efwGrp/efw4.X/security/advisories/GHSA-q7jx-7x5r-r9f6 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| efwGrp efw4.X | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 18, 2026 | CVE Modified | CISA-ADP |
| May 12, 2026 | New CVE Received | [email protected] |