compiled the code

index.js

@@ -1,6 +1,9 @@
 const { exec } = require('child_process');
 const crypto = require('crypto');
 const fs = require('fs');
+const minimist = require('minimist');
+const lodash = require('lodash');
+const chalk = require('chalk');
 
 // Vulnerability 1: Command Injection
 function runCommand(userInput) {
@@ -47,7 +50,43 @@ function insecureFileAccess() {
     fs.chmodSync('important_config_file', 0o777);  // Granting excessive permissions to a file
 }
 
-console.log("This app uses outdated libraries such as chalk 1.1.3, minimist 0.0.8, etc.");
+// Vulnerability 9: Prototype Pollution via lodash
+function exploitLodash() {
+    const payload = '{"__proto__": {"isAdmin": true}}';
+    const obj = {};
+    lodash.merge(obj, JSON.parse(payload));
+    console.log("Prototype Pollution: ", obj.isAdmin);  // Outputs: true
+}
+
+// Vulnerability 10: ReDoS via minimist
+function minimistReDoS() {
+    const userInput = '--foo='.repeat(10000);  // Large input to cause Regular Expression Denial of Service
+    const argv = minimist([userInput]);
+    console.log(argv);
+}
+
+// Vulnerability 11: Improper String Handling via chalk
+function chalkVuln() {
+    const userInput = chalk.red("This is malicious ".repeat(10000));  // Potentially causing performance issues
+    console.log(userInput);
+}
 
-module.exports = { runCommand, runEval, generateWeakToken, getUserData, insecureFileAccess };
+// Example usage
+const args = minimist(process.argv.slice(2));
+if (args.runCommand) {
+    runCommand(args.runCommand);
+}
+if (args.runEval) {
+    runEval(args.runEval);
+}
+if (args.lodashExploit) {
+    exploitLodash();
+}
+if (args.minimistReDoS) {
+    minimistReDoS();
+}
+if (args.chalkVuln) {
+    chalkVuln();
+}
 
+module.exports = { runCommand, runEval, generateWeakToken, getUserData, insecureFileAccess, exploitLodash, minimistReDoS, chalkVuln };