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.
Published 2016-02-13 02:59:13
Updated 2016-12-06 03:07:54
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2016-1949

0.82%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-1949

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
8.8
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
NIST

CWE ids for CVE-2016-1949

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-1949

Products affected by CVE-2016-1949

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