CVE-2023-25730
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Mozilla Firefox
PublishedJun 2, 2023
First seenJun 2, 2023
Weakness typeCWE-1021CWE-1021
How to fix
Update
- mozilla firefox110.0 or later
- mozilla firefox_esr102.8 or later
- mozilla thunderbird102.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 110.0 | 110.0 |
| mozilla firefox_esr | v < 102.8 | 102.8 |
| mozilla thunderbird | v < 102.8 | 102.8 |
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