CVE-2026-33334

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{"affected": [{"affectedData": [{"product": "vikunja", "vendor": "go-vikunja", "versions": [{"status": "affected", "version": ">= 0.21.0, < 2.2.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*", "matchCriteriaId": "AE5EF0A7-C1CA-45D6-9422-16F867671DFF", "versionEndExcluding": "2.2.2", "versionStartIncluding": "0.21.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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 gesti\u00f3n de tareas de c\u00f3digo abierto autoalojada. A partir de la versi\u00f3n 0.21.0 y antes de la versi\u00f3n 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 autom\u00e1ticamente a ejecuci\u00f3n remota de c\u00f3digo completa en la m\u00e1quina de la v\u00edctima, ya que los scripts inyectados obtienen acceso a las API de Node.js. La versi\u00f3n 2.2.0 corrige el problema."}], "id": "CVE-2026-33334", "lastModified": "2026-06-17T10:37:20.257", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33334", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T18:21:43.356520Z", "version": "2.0.3"}}]}, "published": "2026-03-24T16:16:33.077", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xh67-63q3-hf7g"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://vikunja.io/changelog/vikunja-v2.2.0-was-released"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.21.0,2.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "vikunja", "source": "cna", "vendor": "go-vikunja"}, "product": "vikunja", "vendor": "go-vikunja"}], "analysis": {"en": {"generated_at": "2026-03-27T17:28:40.250561+00:00", "value": {"mitigation_remediation": ["Apply the newest Vikunja Desktop update (v2.2.0 or later).", "If an upgrade is not immediately possible, consider disabling nodeIntegration or enabling contextIsolation and sandbox in the Electron configuration until a patch is available."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution via Escalated XSS"}, "threat_synthesis": {"affected_systems": "The affected vendor is go\u2011vikunja and the product is Vikunja Desktop. All releases from version 0.21.0 up to, but not including, 2.2.0 are vulnerable. The 2.2.0 release and newer have the issue resolved.", "description_and_impact": "The vulnerability resides in the Vikunja Desktop Electron wrapper, which enables nodeIntegration in the renderer process without the protections of contextIsolation or a sandbox. As a result, any cross\u2011site scripting flaw present in the web frontend\u2014whether discovered now or introduced later\u2014gains direct access to Node.js APIs. The attacker can therefore run arbitrary code on the victim\u2019s machine, achieving full compromise of confidentiality, integrity, and availability of that system.", "risk_and_exploitability": "The CVSS score of 6.5 indicates a moderate severity, and the EPSS score of less than 1% suggests low predicted exploitation prevalence. The vulnerability is not listed in CISA's KEV catalog. Exploitation requires an XSS vector in the Vikunja web interface; once an attacker injects malicious script, the Electron wrapper\u2019s nodeIntegration lifts the boundary, allowing the script to invoke Node APIs and execute arbitrary code. No additional prerequisites are needed beyond the ability to induce XSS in a user\u2019s browser session."}}}}, "created": "2026-03-25T11:47:17.646438+00:00", "updated": "2026-03-27T20:26:45.641954+00:00", "vendors": ["go-vikunja", "go-vikunja$PRODUCT$vikunja"]}