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Security Advisories: GSA_kwCzR0hTQS12OXcyLXY3ajktcmpwcs0Vjw

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.

Permalink: https://github.com/advisories/GHSA-v9w2-v7j9-rjpr
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12OXcyLXY3ajktcmpwcs0Vjw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago


CVSS Score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-v9w2-v7j9-rjpr, CVE-2021-34435
References: Repository: https://github.com/eclipse-theia/theia
Blast Radius: 20.3

Affected Packages

npm:@theia/mini-browser
Dependent packages: 24
Dependent repositories: 202
Downloads: 19,259 last month
Affected Version Ranges: >= 0.3.9, < 1.9.0
Fixed in: 1.9.0
All affected versions: 0.3.9, 0.3.10, 0.3.11, 0.3.12, 0.3.13, 0.3.14, 0.3.15, 0.3.16, 0.3.17, 0.3.18, 0.3.19, 0.4.0, 0.5.0, 0.6.0, 0.6.1, 0.7.0, 0.7.1, 0.7.2, 0.8.0, 0.9.0, 0.10.0, 0.11.0, 0.12.0, 0.13.0, 0.14.0, 0.15.0, 0.16.0, 0.16.1, 1.0.0, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.8.1
All unaffected versions: 1.9.0, 1.10.0, 1.11.0, 1.12.0, 1.12.1, 1.13.0, 1.14.0, 1.15.0, 1.16.0, 1.17.0, 1.17.1, 1.17.2, 1.18.0, 1.19.0, 1.20.0, 1.21.0, 1.22.0, 1.22.1, 1.23.0, 1.24.0, 1.25.0, 1.26.0, 1.27.0, 1.28.0, 1.29.0, 1.29.1, 1.29.2, 1.30.0, 1.31.0, 1.31.1, 1.32.0, 1.33.0, 1.34.0, 1.34.1, 1.34.2, 1.34.3, 1.34.4, 1.35.0, 1.36.0, 1.37.0, 1.37.1, 1.37.2, 1.38.0, 1.39.0, 1.40.0, 1.40.1, 1.41.0, 1.42.0, 1.42.1, 1.43.0, 1.43.1, 1.44.0, 1.45.0, 1.45.1, 1.46.0, 1.46.1, 1.47.0, 1.47.1