CVE-2016-20018: 
JavaScript vulnerability analysis and mitigation

Knex.js through version 2.3.0 contains a limited SQL injection vulnerability that can be exploited to manipulate the WHERE clause of a SQL query. This vulnerability specifically affects applications using MySQL as their backend database management system (NVD).

The vulnerability occurs when Knex.js processes JavaScript objects or arrays that are inserted into SQL queries. When using the 'where' clause, the library does not properly reject or sanitize Object and Array type inputs, leading to potential SQL injection. This issue affects all methods of using 'where', including parameter binding with raw queries (GhostCcamm Blog).

The vulnerability allows attackers to manipulate SQL queries by bypassing WHERE clause restrictions or querying different columns than intended. This can lead to unauthorized access to data or the ability to modify query behavior. The impact is limited to applications using MySQL as the database backend (GhostCcamm Blog).

The recommended mitigation is to implement strict type checking for inputs that will be used in SQL queries. Specifically, only allow numbers, strings, and boolean values while rejecting Object and Array types. This can be accomplished by using JavaScript's typeof operator to validate input types before passing them to Knex.js queries (GhostCcamm Blog).