A Path Traversal issue was discovered in the socket.io-file package through 2.0.31 for Node.js. The socket.io-file::createFile message uses path.join with ../ in the name option, and the uploadDir and rename options determine the path.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15779
Reference (s):
- https://github.com/advisories/GHSA-9h4g-27m8-qjrg
- https://github.com/rico345100/socket.io-file
- https://www.npmjs.com/advisories/1519
- https://www.npmjs.com/package/socket.io-file