PT-2026-27442 · Vikunja+2 · Vikunja+2

Highkolaente · CVE-2026-33334 · Published 2026-03-24 · Updated 2026-03-24

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Vikunja versions 0.21.0 through 2.1.9

Description Vikunja is a self-hosted task management platform. Versions 0.21.0 through 2.1.9 of the Vikunja Desktop Electron wrapper enable nodeIntegration in the renderer process without contextIsolation or sandbox. This configuration allows any cross-site scripting (XSS) vulnerability in the Vikunja web frontend to potentially lead to full remote code execution on a victim’s machine, as injected scripts gain access to Node.js APIs.

Recommendations Update to version 2.2.0 or later.

Exploit

Fix

Improper Privilege Management

Code Injection

XSS

Weakness Enumeration

CWE-269

CWE-94

CWE-79

Related Identifiers

CVE-2026-33334

GHSA-XH67-63Q3-HF7G

Affected Products

Electron

Vikunja

Vikunja Desktop

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33334.json · Exploit
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xh67-63q3-hf7g · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33334 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33334 · Security Note
• https://twitter.com/CVEnew/status/2036505775586288120 · Twitter Post
• https://vikunja.io/changelog/vikunja-v2.2.0-was-released · Note