CVE-2026-8004 Google Chrome DevTools策略执行不足漏洞

// manifest.json - Conceptual PoC for CVE-2026-8004 { "manifest_version": 3, "name": "DevTools Data Leak PoC", "version": "1.0", "permissions": ["activeTab", "scripting"], "background": { "service_worker": "background.js" } } // background.js - Conceptual exploitation logic // This script attempts to leverage insufficient policy enforcement in DevTools // to leak cross-origin data. In a real scenario, specific DevTools APIs would be targeted. chrome.runtime.onInstalled.addListener(() => { console.log("PoC Extension Installed"); }); // Function to simulate the data leak attempt function attemptDataLeak(targetUrl) { // Hypothetical interaction with DevTools protocol which lacks strict policy checks // In the vulnerable version, this might bypass CORS restrictions. console.log(`Attempting to leak data from: ${targetUrl}`); // Note: Actual exploitation requires specific internal calls that are patched in later versions. // This represents the logic flow of the malicious extension. }