CVE-2021-24000

LOW

Firefox < 88.0 - Race Condition via requestPointerLock and setTimeout

Title source: llm
STIX 2.1

Description

A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting with one tab when they believed they were on a separate tab. In conjunction with certain elements (such as &lt;input type="file"&gt;) this could have led to an attack where a user was confused about the origin of the webpage and potentially disclosed information they did not intend to. This vulnerability affects Firefox < 88.

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-16/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1694698

Scores

CVSS v3 3.1
EPSS 0.0023
EPSS Percentile 46.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Details

CWE
CWE-362
Status published
Products (1)
mozilla/firefox < 88.0
Published Jun 24, 2021
Tracked Since Feb 18, 2026