Vega XSS via expression abusing vlSelectionTuples function array map calls in environments with satisfactory function gadgets in the global scope

Impact Applications meeting these two conditions are at risk of arbitrary JavaScript code execution, even if "safe mode" expressionInterpreter is used. 1. Use vega in an application that attaches both vega library and a vega.View instance similar to the Vega Editor to the global window, or has an...