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Mozilla Foundation Security Advisory 2014-22

WebGL content injection from one domain to rendering in another

March 18, 2014
Jeff Gilbert
Firefox, SeaMonkey
Fixed in
  • Firefox 28
  • SeaMonkey 2.25


Mozilla developer Jeff Gilbert discovered a mechanism where a malicious site with WebGL content could inject content from its context to that of another site's WebGL context, causing the second site to replace textures and similar content. This cannot be used to steal data but could be used to render arbitrary content in these limited circumstances.

In general this flaw cannot be exploited through email in the Seamonkey product because WebGL is not enabled, but is potentially a risk in browser or browser-like contexts.