What is CVE-2021-41038?

CVE-2021-41038 is a medium-severity vulnerability in Eclipse Theia, classified under Improper Verification of Source of a Communication Channel. CVSS score: 6.1/10. Published 2021-11-10.

How severe is CVE-2021-41038?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Eclipse Theia

CVE-2021-41038

In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage().

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Eclipse Theia
The Eclipse Foundation @Theia/plugin-ext — versions unspecified

Weakness classification (CWE)

CWE-940 — Improper Verification of Source of a Communication Channel

References

emo@eclipse.org (x_refsource_CONFIRM, Exploit, Third Party Advisory, Issue Tracking)
emo@eclipse.org (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-41038?: CVE-2021-41038 is a medium-severity vulnerability in Eclipse Theia, classified under Improper Verification of Source of a Communication Channel. CVSS score: 6.1/10. Published 2021-11-10.
How severe is CVE-2021-41038?: Medium severity. CVSS v3 base score is 6.1 out of 10.