CVE-2021-38508: By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the…

Description

By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

None

Integrity

Low

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.6% · higher than 76% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

FI

Firefox · Mozilla

before 94.0 · source: NVD

DL

Debian Linux · Debian

9.0; 10.0; 11.0 · source: NVD

FE

Firefox Esr · Mozilla

before 91.3.0 · source: NVD

TH

Thunderbird · Mozilla

before 91.3.0 · source: NVD