{"action":"Upgrade drupal/core to 8.8.11 or later.","affected":[{"fixed":"8.8.11","introduced":"8.0.0"},{"fixed":"8.9.9","introduced":"8.9.0"},{"fixed":"9.0.8","introduced":"9.0.0"}],"component":"drupal/core","cve_ids":["CVE-2020-13671"],"ecosystem":"Packagist","epss":0.36167,"exploited":true,"fixed_versions":["8.8.11","8.9.9","9.0.8"],"ghsa_id":"GHSA-68jc-v27h-vhmw","id":"tcs_01M5KER8QP4H2E2T84TCH99EHH","modified_at":"2026-09-19T17:38:35Z","published_at":"2020-11-18T17:18:31Z","references":["https://osv.dev/vulnerability/DRUPAL-CORE-2020-012","https://www.drupal.org/sa-core-2020-012"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DRUPAL-CORE-2020-012","url":"https://osv.dev/vulnerability/DRUPAL-CORE-2020-012"},{"source":"kev","source_id":"CVE-2020-13671","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"}],"summary":"*Update November 18: Documented longer list of dangerous file extensions*"}