{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-29T13:10:50.859","vulnerabilities":[{"cve":{"id":"CVE-2018-8927","sourceIdentifier":"security@synology.com","published":"2018-06-14T14:29:00.403","lastModified":"2026-06-17T02:05:40.070","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users to create arbitrary events via the (1) cal_id or (2) original_cal_id parameter."},{"lang":"es","value":"Vulnerabilidad de autorización indebida en SYNO.Cal.Event en Calendar en versiones anteriores a la 2.1.2-0511 permite que usuarios remotos autenticados creen eventos arbitrarios mediante los parámetros (1) cal_id o (2) original_cal_id."}],"affected":[{"source":"security@synology.com","affectedData":[{"vendor":"Synology","product":"Calendar","versions":[{"version":"unspecified","lessThan":"2.1.2-0511","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"security@synology.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":2.5},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","baseScore":4.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security@synology.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-863"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:*","versionEndExcluding":"2.1.2-0511","matchCriteriaId":"F6B755C1-C9B8-4372-8DEA-D0961BFEC45B"}]}]}],"references":[{"url":"https://www.synology.com/en-global/support/security/Synology_SA_18_16","source":"security@synology.com","tags":["Vendor Advisory"]},{"url":"https://www.synology.com/en-global/support/security/Synology_SA_18_16","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}