CVE-2021-30533 — AI Deep Analysis Summary

🚨 **Essence**: Google Chrome has a **Permission & Access Control** flaw. The **PopupBlocker** policy is not enforced strictly enough.…

🛡️ **Root Cause**: **Insufficient PopupBlocker policy execution**. The browser fails to properly restrict popups as intended by security policies.…

📦 **Affected**: Google Chrome. 📅 **Versions**: 87.0.4280.66, 87.0.4280.141, 88.0.4324.96, 88.0.4324.146, 88.0.4324.150, 88.0.4324.182, 89.0.4389.72, 89.0.4389.90, 89.0.4389.114, 89.0.

💻 **Hacker Actions**: Bypass popup blocking mechanisms. 🎯 **Impact**: Could execute malicious scripts via popups, steal data, or trick users into interacting with untrusted content.…

🔓 **Threshold**: **Low**. No authentication required. ⚙️ **Config**: Exploitation relies on browser behavior, not complex system configurations. Users just need to visit a crafted webpage.

🕵️ **Public Exp?**: **No specific PoC** listed in data. 📝 **References**: Links to Chromium bug tracker (crbug.com/1145553) and vendor advisories exist, but no direct exploit code is provided in the dataset.

🔍 **Self-Check**: Verify Chrome version against the affected list above. 📊 **Scanning**: Check for unpatched Chrome installations in enterprise environments. Look for policy enforcement logs related to popups.

✅ **Fixed?**: **Yes**. Vendor released updates. 📢 **Sources**: Google Chrome Stable Channel updates (May 2021), Fedora/Gentoo package advisories. Users must update to the latest version.

🚧 **No Patch?**: Disable JavaScript if possible (breaks web). 🛑 Use strict popup blockers. ⚠️ Avoid visiting untrusted sites. 🔄 **Best**: Update Chrome immediately to the patched version.

🔥 **Urgency**: **High**. 📅 **Published**: June 7, 2021. 🛡️ **Risk**: Browser vulnerabilities are critical. Update immediately to prevent potential compromise. Don't wait!