CVE-2026-33680

{"id": "CVE-2026-33680", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-03-24T16:16:35.570", "references": [{"url": "https://github.com/go-vikunja/vikunja/commit/9efe1fadba817923c7c7f5953c3e9e9c5683bbf3", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8hp8-9fhr-pfm9", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://vikunja.io/changelog/vikunja-v2.2.2-was-released", "tags": ["Release Notes"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.2, the `LinkSharing.ReadAll()` method allows link share authenticated users to list all link shares for a project, including their secret hashes. While `LinkSharing.CanRead()` correctly blocks link share users from reading individual shares via `ReadOne`, the `ReadAllWeb` handler bypasses this check by never calling `CanRead()`. An attacker with a read-only link share can retrieve hashes for write or admin link shares on the same project and authenticate with them, escalating to full admin access. Version 2.2.2 patches the issue."}, {"lang": "es", "value": "Vikunja es una plataforma de gesti\u00f3n de tareas de c\u00f3digo abierto autoalojada. Antes de la versi\u00f3n 2.2.2, el m\u00e9todo `LinkSharing.ReadAll()` permite a los usuarios autenticados con un enlace compartido listar todos los enlaces compartidos de un proyecto, incluyendo sus hashes secretos. Si bien `LinkSharing.CanRead()` bloquea correctamente a los usuarios de enlaces compartidos de leer enlaces compartidos individuales a trav\u00e9s de `ReadOne`, el gestor `ReadAllWeb` omite esta verificaci\u00f3n al no llamar nunca a `CanRead()`. Un atacante con un enlace compartido de solo lectura puede recuperar hashes de enlaces compartidos de escritura o de administrador en el mismo proyecto y autenticarse con ellos, escalando a acceso de administrador completo. La versi\u00f3n 2.2.2 corrige el problema."}], "lastModified": "2026-03-30T13:42:38.180", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79DC3F0A-11CE-4DAA-884D-F285B5D344DD", "versionEndExcluding": "2.2.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}