Same Origin Policy Bypass in Mozilla Firefox via Service Workers and Plugins

CVE-2016-1949 · MEDIUM Severity

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

Mozilla Firefox before 44.0.2 does not properly restrict the interaction between Service Workers and plugins, which allows remote attackers to bypass the Same Origin Policy via a crafted web site that triggers spoofed responses to requests that use NPAPI, as demonstrated by a request for a crossdomain.xml file.

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