	isPerm = function(perm) {
		return (!isNaN(parseInt(perm, 8) && parseInt(perm, 8) <= 511) || perm.match(/^([r-][w-][x-]) {3}$/i));
	};
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.