CVE-2023-29533

Description

A website could have obscured the fullscreen notification by using a combination of <code>window.open</code>, fullscreen requests, <code>window.name</code> assignments, and <code>setInterval</code> calls. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.10%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Focus for Android

Affected: Mozilla Firefox ESR

Affected: Mozilla Firefox for Android

Affected: Mozilla Thunderbird

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2023-15/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-14/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-13/	vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1814597	vendor advisory issue tracking permissions required
https://bugzilla.mozilla.org/show_bug.cgi?id=1798219	vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2023-29533?: CVE-2023-29533 has been scored as a medium severity vulnerability.
How to fix CVE-2023-29533?: To fix CVE-2023-29533, 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-2023-29533 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-29533 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-2023-29533?: CVE-2023-29533 affects Mozilla Firefox, Mozilla Focus for Android, Mozilla Firefox ESR, Mozilla Firefox for Android, Mozilla Thunderbird.

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