{"data":{"id":"CVE-2020-8420","cve_id":"CVE-2020-8420","title":"An issue was discovered in Joomla!","summary":"An issue was discovered in Joomla!","severity":"HIGH","cvss":{"score":8.8,"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"nvd"},"published_at":"2020-01-28T21:15:12.077000Z","modified_at":"2026-06-17T03:26:21Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":true,"relevance":"certain","product":"Joomla CMS","extension":{"type":null,"name":null},"sources":["nvd"],"source_count":1,"url":"https://cve.oyer.fr/cve/CVE-2020-8420","description":"An issue was discovered in Joomla! before 3.9.15. A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.","cwe":["CWE-352"],"affected":[{"package":null,"product":"joomla!","vendor":"joomla","ecosystem":null,"cpe":"cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*","version_start":"3.0.0","version_end":"3.9.15","version_end_inclusive":false,"fixed_version":"3.9.15","type":"core","source":"nvd"}],"references":[{"url":"https://developer.joomla.org/security-centre/799-20200102-core-csrf-com-templates-less-compiler","title":"Vendor Advisory","source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2020-8420","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8420","severity":"HIGH","cvss_score":8.8,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_version":"3.1","first_seen_at":"2026-09-26T09:34:20.199085Z","last_seen_at":"2026-09-26T09:34:20.199085Z"}],"history":[{"at":"2026-09-26T09:34:20.199085Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}