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Improper Verification of Source of a Communication Channel Affecting @theia/plugin-ext package, versions <1.18.0

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.06% (28th percentile)
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NVD
6.1 medium

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  • Snyk ID SNYK-JS-THEIAPLUGINEXT-1921089
  • published 16 Nov 2021
  • disclosed 15 Nov 2021
  • credit Unknown
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Introduced: 15 Nov 2021

CVE-2021-41038 Open this link in a new tab
CWE-940 Open this link in a new tab

How to fix?

Upgrade @theia/plugin-ext to version 1.18.0 or higher.

Overview

@theia/plugin-ext is a Theia - Plugin Extension

Affected versions of this package are vulnerable to Improper Verification of Source of a Communication Channel via the postMessage() function, which allows Webview contents to be hijacked.