Not rated
CVE-2020-15654 When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is…
Description
When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox ESR 78.1 | earliest → < 78.1 | 78.1 |
| Firefox 79 | earliest → < 79 | 79 |
| Thunderbird 78.1 | earliest → < 78.1 | 78.1 |
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