Clickjacking vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey

CVE-2012-1961 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 do not properly handle duplicate values in X-Frame-Options headers, which makes it easier for remote attackers to conduct clickjacking attacks via a FRAME element referencing a web site that produces these duplicate values.

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