CVE-2021-38508 describes a user interface vulnerability in Mozilla Firefox, Thunderbird, and Firefox ESR versions prior to 94 and 91.3 respectively. This flaw allowed a form validity message to obscure a permission prompt, potentially tricking users into unknowingly granting permissions like geolocation. Rated Medium with a CVSS score of 4.3, this vulnerability requires user interaction (UI:R) and has a low impact on integrity (I:L), as it primarily involves social engineering rather than direct code execution. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion beyond a single media article.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 94.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 91.3.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | ||
< 91.3.0CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.