{"schemaVersion":3,"id":"CVE-2023-5256","aliases":["UBUNTU-CVE-2023-5256"],"status":"published","duplicateOf":null,"title":null,"description":"In certain scenarios, Drupal's JSON:API module will output error backtraces. With some configurations, this may cause sensitive information to be cached and made available to anonymous users, leading to privilege escalation.\n\nThis vulnerability only affects sites with the JSON:API module enabled, and can be mitigated by uninstalling JSON:API.\n\nThe core REST and contributed GraphQL modules are not affected.","dates":{"published":"2023-09-28T18:17:43.128Z","modified":"2024-09-23T18:25:29.327Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":4.1,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00851,"percentile":0.57551,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.15700000000000003,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00694},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00851,"percentile":0.57551}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00694,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00844,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00851,"percentile":0.57551}]},"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-200","name":"Exposure of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"}],"affected":[{"vendor":"ubuntu","product":"drupal7","name":"drupal7","label":"drupal7","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/drupal7","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"drupal","product":"core","name":"Core","label":"core","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 10.1, ≤ 10.1.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0, ≤ 10.0.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.5, ≤ 9.5.11","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 10.1, ≤ 10.1.4 | ≥ 10.0, ≤ 10.0.11 | ≥ 9.5, ≤ 9.5.11","eol":null,"hubHref":"/vendor/drupal/core"},{"vendor":"drupal","product":"drupal","name":"drupal","label":"drupal","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.7.0, < 9.5.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.1.0, < 10.1.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.7.0, < 9.5.11 | ≥ 10.0.0, < 10.0.11 | ≥ 10.1.0, < 10.1.4","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"drupal","label":"Drupal","category":"server-app"}},"hubHref":"/vendor/drupal/drupal"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.drupal.org/sa-core-2023-006","label":"www.drupal.org/sa-core-2023-006","hostname":"www.drupal.org","tags":["Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-5256","label":"ubuntu.com/security/CVE-2023-5256","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-5256","label":"www.cve.org/CVERecord?id=CVE-2023-5256","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-09-28T18:17:43.128Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-23T18:25:29.327Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T19:32:14.242Z","stale":false,"partial":false}}