:Bobowen

**Name of the Vulnerable Software and Affected Versions** Mozilla Firefox versions prior to 22.0 **Description** The issue arises from improper implementation of certain DocShell inheritance behavior for the sandbox attribute of an IFRAME element. This allows remote attackers to bypass intended access restrictions via a FRAME element within an IFRAME element. **Recommendations** For versions prior to 22.0, update to version 22.0 or later to resolve the issue.