CVE-2021-29987

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.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1716129

https://security.gentoo.org/glsa/202202-03

https://www.mozilla.org/security/advisories/mfsa2021-33/

https://www.mozilla.org/security/advisories/mfsa2021-36/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3