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CVE-2021-38508 By displaying a form validity message in the correct location at the same time as a permission prompt (such as for…

Description

By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Affected products and versions

Product Affected versions Fixed in
Firefox 94 earliest → < 94 94
Thunderbird 91.3 earliest → < 91.3 91.3
Firefox ESR 91.3 earliest → < 91.3 91.3

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