Mozilla Foundation Security Advisory 2012-102

Script entered into Developer Toolbar runs with chrome privileges

Announced
November 20, 2012
Reporter
Masato Kinugawa
Impact
High
Products
Firefox
Fixed in
  • Firefox 17

Description

Security researcher Masato Kinugawa reported that when script is entered into the Developer Toolbar, it runs in a chrome privileged context. This allows for arbitrary code execution or cross-site scripting (XSS) if a user can be convinced to paste malicious code into the Developer Toolbar.

References