CVE-2020-12079 describes a critical sandbox escape vulnerability in Beaker Browser versions prior to 0.8.9. This flaw stems from the lack of Electron context isolation, enabling a prototype-pollution attack against the Electron internal messaging API. With a CVSS score of 10.0, this vulnerability allows unauthenticated attackers to achieve system access and arbitrary code execution with low attack complexity and high impact on confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.8.9CPE matchmatch criteria | cpe:2.3:a:beakerbrowser:beaker:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.