CVE-2026-33335

HIGH

8.0

Description

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 passes URLs from `window.open()` calls directly to `shell.openExternal()` without any validation or protocol allowlisting. An attacker who can place a link with `target="_blank"` (or that otherwise triggers `window.open`) in user-generated content can cause the victim's operating system to open arbitrary URI schemes, invoking local applications, opening local files, or triggering custom protocol handlers. Version 2.2.0 patches the issue.

Details CVE

Score CVSS v3.18.0

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie3/24/2026

Derniere modification3/27/2026

Sourcenvd

Observations honeypot0

Produits affectes

vikunja:vikunja

Faiblesses (CWE)

CWE-939

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-6q44-85gc-cjvf(security-advisories@github.com)

https://vikunja.io/changelog/vikunja-v2.2.0-was-released(security-advisories@github.com)

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-6q44-85gc-cjvf(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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