Description
The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the unsafe !!js/function tag, which allows remote attackers to execute arbitrary code via a crafted string that triggers an eval operation.
Remediation
References
http://portal.nodesecurity.io/advisories/js-yaml
https://nealpoole.com/blog/2013/06/code-execution-via-yaml-in-js-yaml-nodejs-module/