GHSA-w6v7-w58j-pg5r

GitHub Security Advisory

Improper Verification of Communication Channel in @theia/plugin-ext

✓ GitHub Reviewed MODERATE Has CVE

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

npm @theia/plugin-ext

Affected versions: 0 (fixed in 1.18.0)

CVE-2021-41038

GHSA ID

GHSA-w6v7-w58j-pg5r

Published

November 15, 2021 5:40 PM

Last Modified

November 15, 2021 2:59 PM

CVSS Score

5.0 /10

Primary Ecosystem

npm

Primary Package

@theia/plugin-ext

GitHub Reviewed

✓ Yes

Last updated: November 26, 2025 6:30 AM

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