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TI-2026-32234 Aliases CVE-2026-44257

efw4.X: RCE via zipslip

Priority HIGH 81CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00391 33rd percentileScored 2026-11-07
Fix Fixed efw4.X (efwGrp): 4.08.010

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
efwGrpefw4.Xbefore 4.08.0104.08.010Patch availableCNA
  • efw4.X VendorefwGrp Affected before 4.08.010 Fixed in 4.08.010 Patch available CNA

Remediation

  • Fix · CNA efw4.X (efwGrp) Fixed in 4.08.010

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44257

References

Other 1

  • TI-2026-32235 efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2026-32237 efw4.X: readonly Flag Not Enforced Server-Side CVSS 3.1HIGH 8.1
  • TI-2026-32236 efw4.X: Stored XSS via previewServlet CVSS 3.1MEDIUM 4.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences