{"schemaVersion":3,"id":"CVE-2020-16144","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"When using an object storage like S3 as the file store, when a user creates a public link to a folder where anonymous users can upload files, and another user uploads a virus the files antivirus app would detect the virus but fails to delete it due to permission issues. This affects the files_antivirus component versions before 0.15.2 for ownCloud.","dates":{"published":"2021-02-09T17:59:11.000Z","modified":"2024-08-04T13:37:53.528Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.7,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.7,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":3.5,"severity":"low","vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00797,"percentile":0.55788,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00797},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00797,"percentile":0.55788}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00797,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00797,"percentile":0.55788}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-276","name":"Incorrect Default Permissions","description":"During installation, installed file permissions are set to allow anyone to modify those files.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/276.html"}],"affected":[{"vendor":"owncloud","product":"files_antivirus","name":"files antivirus","label":"files_antivirus","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.15.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.15.2","eol":null,"hubHref":"/vendor/owncloud/files_antivirus"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://owncloud.com/security-advisories/files-antivirus-doesnt-delete-virus-if-uploaded-through-public-link/","label":"owncloud.com/security-advisories/…","hostname":"owncloud.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-02-09T17:59:11.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T13:37:53.528Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":23,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T05:38:59.090Z","stale":false,"partial":false}}