CVE-2017-15891

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{"affected": [{"affectedData": [{"product": "Synology Calendar", "vendor": "Synology", "versions": [{"status": "affected", "version": "before 2.0.1-0242"}]}], "source": "security@synology.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C533652-085B-41D0-91C1-4F27CB70D0C1", "versionEndExcluding": "2.0.1-0242", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control vulnerability in SYNO.Cal.EventBase in Synology Calendar before 2.0.1-0242 allows remote authenticated users to modify calendar event via unspecified vectors."}, {"lang": "es", "value": "Vulnerabilidad de control de acceso indebido en SYNO.Cal.EventBase en Synology Calendar en versiones anteriores a la 2.0.1-0242 permite que usuarios remotos autenticados modifiquen eventos del calendario mediante vectores sin especificar."}], "id": "CVE-2017-15891", "lastModified": "2026-06-17T01:08:26.733", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-12-08T16:29:00.247", "references": [{"source": "security@synology.com", "tags": ["Vendor Advisory"], "url": "https://www.synology.com/en-global/support/security/Synology_SA_17_68_Calendar"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.synology.com/en-global/support/security/Synology_SA_17_68_Calendar"}], "sourceIdentifier": "security@synology.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "security@synology.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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