CVE-2019-11762
Mozilla: document.domain-based origin isolation has same-origin-property violation
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 22, 2019
Updated · November 22, 2025
Description
A flaw was found in Mozilla's firefox and thunderbird where if two same-origin documents set document.domain differently to become cross-origin, it was possible for them to call arbitrary DOM methods/getters/setters on the now-cross-origin window. This could cause an interaction between two different sites on two different windows running under the same application.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE-829 · Inclusion of Functionality from Untrusted Control Sphere