Mozilla: Cross-Site Tracing was possible via non-standard override headers

The Mozilla Foundation Security Advisory describes this flaw as: Cross-Site Tracing occurs when a server will echo a request back via the Trace method, allowing an XSS attack to access to authorization headers and cookies inaccessible to JavaScript such as cookies protected by HTTPOnly. To mitiga...

WebAssembly Changes Could Ruin Meltdown/Spectre Browser Patches

Upcoming changes to the WebAssembly Wasm format may defang the browser patches for infamous side-channel attacks Meltdown and Spectre. Wasm was invented to improve execution speed for porting desktop applications to web-based environments; programs are compiled in Wasm and then can easily be run ...