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.
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 13 May 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Efwgrp
Efwgrp efw4.x |
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| Vendors & Products |
Efwgrp
Efwgrp efw4.x |
Tue, 12 May 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | efw4.X: RCE via zipslip | |
| Weaknesses | CWE-77 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-12T21:06:42.018Z
Reserved: 2026-05-05T16:33:55.844Z
Link: CVE-2026-44257
No data.
Status : Deferred
Published: 2026-05-12T22:16:35.840
Modified: 2026-05-13T16:10:57.817
Link: CVE-2026-44257
No data.
OpenCVE Enrichment
Updated: 2026-05-13T10:35:32Z
Weaknesses