PT-2021-4954 · Mozilla+9 · Firefox Esr+11
Ademar Nowasky Junior
·
Published
2021-11-02
·
Updated
2024-12-12
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CVE-2021-38509
CVSS v2.0
5.0
Medium
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 94
Thunderbird versions prior to 91.3
Firefox ESR versions prior to 91.3
Description
The issue is related to an incorrect limitation of visualized user interface layers in Mozilla Firefox, allowing an attacker to display a Javascript
alert() dialog with arbitrary contents over an uncontrolled webpage. This can be achieved through a specific sequence of attacker-controlled events.Recommendations
For Firefox versions prior to 94, update to version 94 or later.
For Thunderbird versions prior to 91.3, update to version 91.3 or later.
For Firefox ESR versions prior to 91.3, update to version 91.3 or later.
Exploit
Fix
Clickjacking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Firefox
Firefox Esr
Linuxmint
Red Hat
Rocky Linux
Suse
Thunderbird
Ubuntu