{"id":"CVE-2020-13666","aliases":["BIT-drupal-2020-13666","DRUPAL-CORE-2020-007","GHSA-8jj2-x2gc-ggm7"],"url":"https://o3.security/vulnerability/CVE-2020-13666","summary":"Drupal Core Cross-site scripting vulnerability","details":"Cross-site scripting vulnerability in Drupal Core. Drupal AJAX API does not disable JSONP by default, allowing for an XSS attack. This issue affects: Drupal Drupal Core 7.x versions prior to 7.73; 8.8.x versions prior to 8.8.10; 8.9.x versions prior to 8.9.6; 9.0.x versions prior to 9.0.6.","published":"2021-05-05T14:15:07.777Z","modified":"2026-07-08T16:26:50.767977Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.02925,"percentile":0.85957,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"8.8.10"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"8.9.6"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"9.0.6"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"7.73"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"7.73"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"8.8.10"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"8.9.6"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"9.0.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://www.drupal.org/sa-core-2020-007"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T16:26:50.767977Z"}}