{"data":{"id":"CVE-2021-23124","cve_id":"CVE-2021-23124","title":"An issue was discovered in Joomla!","summary":"An issue was discovered in Joomla!","severity":"MEDIUM","cvss":{"score":6.1,"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"nvd"},"published_at":"2021-01-12T21:15:18.947000Z","modified_at":"2026-06-17T03:38:18.500000Z","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-2021-23124","description":"An issue was discovered in Joomla! 3.9.0 through 3.9.23. The lack of escaping in mod_breadcrumbs aria-label attribute allows XSS attacks.","cwe":["CWE-79"],"affected":[{"package":null,"product":"Joomla! CMS","vendor":"Joomla! Project","ecosystem":null,"cpe":null,"version_start":"3.9.0","version_end":"3.9.23","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"},{"package":null,"product":"joomla!","vendor":"joomla","ecosystem":null,"cpe":"cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*","version_start":"3.9.0","version_end":"3.9.23","version_end_inclusive":true,"fixed_version":null,"type":"core","source":"nvd"}],"references":[{"url":"https://developer.joomla.org/security-centre/837-20210102-core-xss-in-mod-breadcrumbs-aria-label-attribute.html","title":"Vendor Advisory","source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2021-23124","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23124","severity":"MEDIUM","cvss_score":6.1,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvss_version":"3.1","first_seen_at":"2026-09-26T09:34:21.793847Z","last_seen_at":"2026-09-26T09:34:21.793847Z"}],"history":[{"at":"2026-09-26T09:34:21.793847Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}