5.4
Medium
CVE-2023-25730 A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen…
Description
A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 110 | earliest → < 110 | 110 |
| Thunderbird 102.8 | earliest → < 102.8 | 102.8 |
| Firefox ESR 102.8 | earliest → < 102.8 | 102.8 |
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