CVE-2026-4692 Firefox响应式设计模式沙箱逃逸漏洞

/** * Conceptual Proof of Concept for CVE-2026-4692 * Demonstrates triggering the Responsive Design Mode context * to attempt a sandbox escape. * Note: Actual exploit code is omitted for security reasons. */ function triggerExploit() { console.log("[+] Attempting to trigger Responsive Design Mode vulnerability..."); try { // 1. Simulate the vulnerable condition in Responsive Design Mode // Attackers often manipulate the viewport or user-agent strings to trigger specific paths. let vulnerableMode = document.designMode; // 2. Trigger the sandbox bypass logic // This is a hypothetical representation of the vulnerability trigger. if (window.location.protocol === 'http:') { // Hypothetical condition // Attempting to break out of the sandbox window.postMessage({ type: 'sandbox_escape', payload: 'malicious_code_execution' }, '*'); } // 3. If successful, the attacker would gain system access console.log("[+] Exploit triggered. Checking for sandbox escape..."); } catch (error) { console.error("[-] Exploit failed: " + error.message); } } // Auto-execute triggerExploit();