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Firefox Privacy Notice

Mozilla Foundation Security Advisory 2016-48

Firefox Health Reports could accept events from untrusted domains

Announced
April 26, 2016
Reporter
Mark Goodwin
Impact
Moderate
Products
Firefox
Fixed in
  • Firefox 46

Description

Mozilla engineer Mark Goodwin discovered that the Firefox Health Report (about:healthreport) accepts certain events from any content document present in the remote-report iframe. If there were another vulnerability that allowed the injection of web content into the Firefox Health Report iframe, this content could change the sharing preferences of a user by firing the appropriate events at it s containing page.

References