CVE-2021-24000

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.

Category

3.1
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2021-16/ release notes vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1694698 issue tracking permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-24000?
CVE-2021-24000 has been scored as a low severity vulnerability.
How to fix CVE-2021-24000?
To fix CVE-2021-24000, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24000 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-24000 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24000?
CVE-2021-24000 affects Mozilla Firefox.
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