Prohibit prototype pollution

dfahlander · dfahlander · commit 1d655a69b9f2 · 2022-04-27T12:27:20.000+02:00
diff --git a/src/functions/utils.ts b/src/functions/utils.ts
@@ -151,7 +151,7 @@ export function setByKeyPath(obj, keyPath, value) {
                 } else obj[currentKeyPath] = value;
             else {
                 var innerObj = obj[currentKeyPath];
-                if (!innerObj) innerObj = (obj[currentKeyPath] = {});
+                if (!innerObj || !hasOwn(obj, currentKeyPath)) innerObj = (obj[currentKeyPath] = {});
                 setByKeyPath(innerObj, remainingKeyPath, value);
             }
         } else {

Original file line number	Diff line number	Diff line change
`@@ -151,7 +151,7 @@ export function setByKeyPath(obj, keyPath, value) {`
`151`	`151`	`} else obj[currentKeyPath] = value;`
`152`	`152`	`else {`
`153`	`153`	`var innerObj = obj[currentKeyPath];`
`154`		`- if (!innerObj) innerObj = (obj[currentKeyPath] = {});`
	`154`	`+ if (!innerObj \|\| !hasOwn(obj, currentKeyPath)) innerObj = (obj[currentKeyPath] = {});`
`155`	`155`	`setByKeyPath(innerObj, remainingKeyPath, value);`
`156`	`156`	`}`
`157`	`157`	`} else {`