Paper/Archive/CVE-2026-33334

CVE-2026-33334

go-vikunja vikunja — Vikunja Desktop: Any frontend XSS escalates to Remote Code Execution due to nodeIntegration

CVSS 9.6 (NVD)9.6 / 10 × 3028.8 Not in CISA KEV+300.0 EPSS percentile 34.3.343 × 206.9 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

vikunja>= 0.21.0, < 2.2.0–CNA

Scores by source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

GitHub_M (CNA)6.5CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/go-vikunja/vikunja/security/advisories/GHSA-xh67-63q3-hf7g refvikunja.io/changelog/vikunja-v2.2.0-was-released