diff --git a/my-vulnerable-code.js b/my-vulnerable-code.js
new file mode 100644
index 0000000..333da4a
--- /dev/null
+++ b/my-vulnerable-code.js
@@ -0,0 +1,6 @@
+function endsWith(x, y) {
+
+    let index = x.lastIndexOf(y);
+    return x.lastIndexOf(y) === x.length - y.length;
+
+}
\ No newline at end of file