CVE-2021-34435 – @theia/mini-browser

Package

Manager: npm
Name: @theia/mini-browser
Vulnerable Version: >=0.3.9 <1.9.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00155 pctl0.36798

Details

Remote code execution in Eclipse Theia In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.

Metadata

Created: 2021-09-02T22:02:36Z
Modified: 2021-09-13T20:27:30Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-v9w2-v7j9-rjpr/GHSA-v9w2-v7j9-rjpr.json
CWE IDs: ["CWE-346", "CWE-668", "CWE-942"]
Alternative ID: GHSA-v9w2-v7j9-rjpr
Finding: F184
Auto approve: 1