SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-4478

Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 do not impose certain ECMAScript 6 requirements on JavaScript object properties, which allows remote attackers to bypass the Same Origin Policy via the reviver parameter to the JSON.parse…

MEDIUM 5.0EPSS 3.37%

Does this matter?

Lower severity and a low EPSS score (3.37%). Track it; it rarely justifies an emergency change on its own.

Description

Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 do not impose certain ECMAScript 6 requirements on JavaScript object properties, which allows remote attackers to bypass the Same Origin Policy via the reviver parameter to the JSON.parse method.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS
3.37% probability · 88th percentile
CISA KEV
Not listed
Weakness
CWE-200
Affected
canonical/ubuntu linux · opensuse/opensuse · mozilla/firefox
Source
security@mozilla.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.