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Vulnerabilities ›

CVE-2026-33335

High ⚡ Exploit Available

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 direc

CWE-939 — Weakness Type

                    Published: Mar 24, 2026                      ·  Modified: Mar 30, 2026                      ·  Source: NVD                

CVSS v3

8.0

🔗 NVD Official

📄 Description (English)

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.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 3

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

security-advisories@github.com

Exploit Vendor Advisory

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

Exploit Vendor Advisory

📦 Affected Products / CPE 1 entries

vikunja:vikunja

📊 CVSS Score

8.0

/ 10.0 — High

📊 CVSS Vector

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

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionR — Required

ScopeU — Unchanged

ConfidentialityH — High

IntegrityH — High

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score8.0

CWECWE-939

Exploit ✓ Yes

Patch ✗ No

Published 2026-03-24

Source Feed nvd

Views 3

🏷️ Tags

exploit-available CWE-939

🏢 Vendor Advisories

🔗 https://github.com/go-vikunja/vikunja/security/advis... 🔗 https://github.com/go-vikunja/vikunja/security/advis...

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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