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CVE-2019-11716

Mozilla: globalThis not enumerable until accessed

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Severity

Moderate

Red Hat Product Security

8.3

CVSS 3.0

Review impact separately from score.

Published · July 9, 2019

Updated · January 14, 2026

Description

Until explicitly accessed by script, window.globalThis is not enumerable and, as a result, is not visible to code such as Object.getOwnPropertyNames(window). Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed. This vulnerability affects Firefox < 68.

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 3.0 · 8.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CWE-212 · Improper Removal of Sensitive Information Before Storage or Transfer