Skip to content
CVE Tracker
Back

CVE-2012-1956

Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12 do not prevent use of the Object.defineProperty method to…

Medium4.3EPSS 1.9%
Published
Updated
Reserved
Assigned by
mitre

Description

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.

Scores

CVSS scores of CVE-2012-1956, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Medium4.3AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS (exploitation in 30 days)
1.9% · top 20% of all CVEs (2 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

Affected products

  • n/a

    • affected n/a

References (10)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .