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CVE-2023-29533 A website could have obscured the fullscreen notification by using a combination of window.open, fullscreen requests,…

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.

Affected products and versions

Product Affected versions Fixed in
Firefox 112 earliest → < 112 112
Focus for Android 112 earliest → < 112 112
Firefox ESR 102.10 earliest → < 102.10 102.10
Firefox for Android 112 earliest → < 112 112
Thunderbird 102.10 earliest → < 102.10 102.10

Other CVEs of Firefox

The 2221 CVEs of Firefox →
CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118025 Other issue in the SVG component 8.8 High CVE-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High
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