CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
Percentile
81.2%
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.