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CVE-2021-24000

Date: June 24, 2021

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.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2021-24000
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-24000
https://security.alpinelinux.org/vuln/CVE-2021-24000
https://bugzilla.mozilla.org/show_bug.cgi?id=1694698
https://www.mozilla.org/security/advisories/mfsa2021-16/
https://www.mend.io/vulnerability-database/CVE-2021-24000

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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