{"schemaVersion":3,"id":"CVE-2020-13665","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Access bypass vulnerability in Drupal Core allows JSON:API when JSON:API is in read/write mode. Only sites that have the read_only set to FALSE under jsonapi.settings config are vulnerable. This issue affects: Drupal Drupal Core 8.8.x versions prior to 8.8.8; 8.9.x versions prior to 8.9.1; 9.0.x versions prior to 9.0.1.","dates":{"published":"2021-05-05T14:14:09.000Z","modified":"2024-08-04T12:25:16.379Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01275,"percentile":0.69494,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01275},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01275,"percentile":0.69494}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01275,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01275,"percentile":0.69494}]},"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":[],"affected":[{"vendor":"drupal","product":"drupal","name":"drupal","label":"drupal","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.8.0, < 8.8.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.9.0, < 8.9.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.0.0, < 9.0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.8.0, < 8.8.8 | ≥ 8.9.0, < 8.9.1 | ≥ 9.0.0, < 9.0.1","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"drupal","label":"Drupal","category":"server-app"}},"hubHref":"/vendor/drupal/drupal"},{"vendor":"drupal","product":"drupal core","name":"Drupal core","label":"drupal core","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.8.x, < 8.8.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.9.x, < 8.9.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.0.x, < 9.0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.8.x, < 8.8.8 | ≥ 8.9.x, < 8.9.1 | ≥ 9.0.x, < 9.0.1","eol":null,"hubHref":"/vendor/drupal/drupal_core"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.drupal.org/sa-core-2020-006","label":"www.drupal.org/sa-core-2020-006","hostname":"www.drupal.org","tags":["X Refsource CONFIRM","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-05-05T14:14:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T12:25:16.379Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T04:43:55.368Z","stale":false,"partial":false}}