CVE-2021-29987
Medium
Description
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedAug 17, 2021
First seenAug 17, 2021
How to fix
Update
- mozilla firefox91.0 or later
- mozilla thunderbird91.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 91.0 | 91.0 |
| mozilla thunderbird | v < 91.0 | 91.0 |
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