CVE-2021-29987

Source
https://cve.org/CVERecord?id=CVE-2021-29987
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-29987.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-29987
Downstream
Related
Published
2021-08-17T20:15:07.973Z
Modified
2026-03-13T04:25:41.796412Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git /

Affected ranges

Database specific

unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "91.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "91.0"
            }
        ]
    }
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-29987.json"