Description
math.js before 3.17.0 had an issue where private properties such as a constructor could be replaced by using unicode characters when creating an object.
Remediation
References
https://github.com/josdejong/mathjs/blob/master/HISTORY.md#2017-11-18-version-3170
https://github.com/josdejong/mathjs/commit/a60f3c8d9dd714244aed7a5569c3dccaa3a4e761