Description
exxxxxxxxxxx is an Http eX Frame Google Style JavaScript Guide. exxxxxxxxxxx is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url. Accessible files are restricted to those with a file extension. Files with no extension such as /etc/passwd throw an error.
Remediation
References
https://nodesecurity.io/advisories/478
https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/exxxxxxxxxxx