Browser & Client-Side Exploitation

Turn a single client-side bug into full host compromise. The modern browser is a chain target: a JS-engine bug yields an in-renderer arbitrary read/write, the V8 heap sandbox must be escaped to get a native R/W, then a second logic/memory bug in a privileged process (browser broker, GPU) escapes the OS sandbox. Electron and embedded webviews collapse several of these steps. Every cluster pairs the offensive primitive with renderer-crash/IPC telemetry, Sigma/EDR detection, and cleanup OPSEC.

When to Activate

• A V8/JavaScriptCore bug (type confusion, OOB, UAF, JIT mis-speculation) must become addrof/fakeobj and an in-renderer arbitrary R/W.
• An in-renderer R/W exists but is trapped inside the V8 heap sandbox (pointer compression) and needs a trusted-pointer / Wasm-object escape to native memory.
• A renderer is fully compromised and you need to escape the OS sandbox via Mojo IPC handle/logic bugs or the GPU process (Dawn/WebGPU, ANGLE).
• Auditing or exploiting an Electron / CEF / WebView2 app: contextIsolation/nodeIntegration/sandbox misconfig, preload-bridge & IPC abuse, ASAR/fuse/snapshot tampering.
• Assembling a 1-click drive-by RCE chain (renderer → sandbox escape → host) for an authorized red-team delivery, or doing cross-engine (Safari/JSC) work.
• Patch-diffing a Chrome/V8/WebKit security release to build an n-day client-side exploit.

Technique Map