Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12 do not prevent use of the Object.defineProperty method to shadow the location object (aka window.location), which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via vectors involving a plugin.
Published 2012-08-29 10:56:40
Updated 2017-09-19 01:34:54
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2012-1956

0.33%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2012-1956

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
NIST

CWE ids for CVE-2012-1956

References for CVE-2012-1956

Products affected by CVE-2012-1956

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