CVE-2021-34435

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..
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
eclipseCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
VendorProductVersion
eclipsetheia
0.3.9 ≤
𝑥
≤ 1.8.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018