OpenRefine is a free, open source tool for data processing. A carefully crafted malicious OpenRefine project tar file can be used to trigger arbitrary code execution in the context of the OpenRefine process if a user can be convinced to import it. The vulnerability exists in all versions of OpenRefine up to and including 3.7.3. Users should update to OpenRefine 3.7.4 as soon as possible. Users unable to upgrade should only import OpenRefine projects from trusted sources.

OpenRefine through 3.1 allows arbitrary file write because Directory Traversal can occur during the import of a crafted project file.

The data import functionality in OpenRefine through 3.1 allows an XML External Entity (XXE) attack through a crafted (zip) file, allowing attackers to read arbitrary files.

OpenRefine before 3.2 beta allows directory traversal via a relative pathname in a ZIP archive.