NetSight
critical9.3

CVE-2026-44257

efw4.X is an Enterprise Framework for Web.

Impact

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.

Affected products

ProductAffected versions
Efw4.X Is An Enterprise Framework For Web.
before 4.08.010

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References