UI Tour whitelisted sites in background tab can spoof foreground tabs

2015-02-24T00:00:00
ID MFSA2015-26
Type mozilla
Reporter Mozilla Foundation
Modified 2015-02-24T00:00:00

Description

Mozilla developer Matthew Noorenberghe reported that whitelisted Mozilla domains could make UITour API calls while the UI Tour pages for Firefox are present in background tabs. If one of these Mozilla domains was compromised and open in another tab, an attacker could then use that tab to engage in spoofing and clickjacking in any foreground tab.