CVE-2021-41038

6.1 mediumEPSS 0.7%

Medium (6.1) in eclipse theia. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in @theia/plugin-ext 1.18.0.

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

Severity

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-940
Published: 2021-11-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-w6v7-w58j-pg5r	npm	@theia/plugin-ext	<1.18.0	1.18.0