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Active filters (1):Package: pkg:github/go-vikunja/vikunja

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CVE-2026-33335 is a medium-severity vulnerability in the Vikunja Desktop Electron wrapper versions from 0.21.0 up to but not including 2.2.0. The issue arises because URLs passed to window.open() are forwarded directly to shell.openExternal() without validation or protocol allowlisting. This allows an attacker who can embed links with target="_blank" or trigger window.open in user-generated content to cause the victim's OS to open arbitrary URI schemes.

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Vikunja is an open-source self-hosted task management platform. Starting in version 0.21.0 and prior to version 2.2.0, the Vikunja Desktop Electron wrapper enables `nodeIntegration` in the renderer process without `contextIsolation` or `sandbox`. This means any cross-site scripting (XSS) vulnerability in the Vikunja web frontend -- present or future -- automatically escalates to full remote code execution on the victim's machine, as injected scripts gain access to Node.js APIs. Version 2.2.0 fixes the issue.

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