CVE-2022-22743

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected software

Vendor	Product	Versions
Mozilla	Firefox ESR	>= unspecified, < 91.5
Mozilla	Firefox	>= unspecified, < 96
Mozilla	Thunderbird	>= unspecified, < 91.5

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1739220Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2022-01/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-02/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-03/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1739220Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2022-01/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-02/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-03/Vendor Advisory

Timeline

Published: Dec 22, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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