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CVE-2026-33334— Vikunja Desktop: Any frontend XSS escalates to Remote Code Execution due to nodeIntegration

Quick assessment

Affected
go-vikunja vikunja
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 0.21.0至2.2.0之前版本存在安全漏洞，该漏洞源于Vikunja Desktop Electron包装器在渲染进程中启用了nodeIntegration但未启用contextIsolation或sandbox，可能导致任何跨站脚本漏洞自动升级为在受害者机器上执行完整远程代码。

AI Predicted 9.8 Difficulty: Easy EPSS 0.70% · P52
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I. Basic Information for CVE-2026-33334

Vulnerability Information
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Vulnerability Title
Vikunja Desktop: Any frontend XSS escalates to Remote Code Execution due to nodeIntegration
Source: CVE Program / CVE List V5
Vulnerability 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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Vikunja 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 0.21.0至2.2.0之前版本存在安全漏洞，该漏洞源于Vikunja Desktop Electron包装器在渲染进程中启用了nodeIntegration但未启用contextIsolation或sandbox，可能导致任何跨站脚本漏洞自动升级为在受害者机器上执行完整远程代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
go-vikunja vikunja >= 0.21.0, < 2.2.0 -

II. Public POCs for CVE-2026-33334

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III. Intelligence Information for CVE-2026-33334

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Vendor Advisories for CVE-2026-33334 (1)

Vendor Pages for CVE-2026-33334 (1)

Same Patch Batch · go-vikunja · 2026-03-24 · 16 CVEs total

CVE-2026-33316 8.1 HIGH Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablem
CVE-2026-33678 8.1 HIGH Vikunja has IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion
CVE-2026-33680 7.5 HIGH Vikunja Vulnerable to Link Share Hash Disclosure via ReadAll Endpoint Enables Permission E
CVE-2026-33474 6.5 MEDIUM Vikunja Affected by DoS via Image Preview Generation
CVE-2026-33677 6.5 MEDIUM Webhook BasicAuth Credentials Exposed to Read-Only Project Collaborators via API
CVE-2026-33676 6.5 MEDIUM Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorizatio
CVE-2026-33675 6.4 MEDIUM Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Int
CVE-2026-33679 6.4 MEDIUM Vikunja has SSRF via OpenID Connect Avatar Download that Bypasses Webhook SSRF Protections
CVE-2026-33473 5.7 MEDIUM Vikunja has TOTP Reuse During Validity Window
CVE-2026-33315 Vikunja has a 2FA Bypass via Caldav Basic Auth
CVE-2026-33313 Vikunja has an IDOR in Task Comments Allows Reading Arbitrary Comments
CVE-2026-33335 Vikunja Desktop allows arbitrary local application invocation via unvalidated shell.openEx
CVE-2026-33336 Vikunja Desktop vulnerable to Remote Code Execution via same-window navigation
CVE-2026-33668 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and O
CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Projec

IV. Related Vulnerabilities

Same product: vikunja
Same vendor: go-vikunja
Same weakness: CWE-94

V. Comments for CVE-2026-33334

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