{"data":{"id":"CVE-2026-66490","cve_id":"CVE-2026-66490","title":"Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","summary":"Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","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":"2026-07-29T14:16:34.373000Z","modified_at":"2026-08-05T17:24:22.993000Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":false,"relevance":"certain","product":"Gridbox","extension":{"type":"component","name":"Gridbox"},"sources":["nvd"],"source_count":1,"url":"https://cve.oyer.fr/cve/CVE-2026-66490","description":"Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","cwe":["CWE-79"],"affected":[{"package":"com_gridbox","product":"Gridbox extension for Joomla","vendor":"balbooa.com","ecosystem":null,"cpe":null,"version_start":"1.0.0","version_end":"2.20.1","version_end_inclusive":true,"fixed_version":null,"type":"component","source":"nvd"},{"package":null,"product":"gridbox","vendor":"balbooa","ecosystem":null,"cpe":"cpe:2.3:a:balbooa:gridbox:*:*:*:*:*:joomla\\!:*:*","version_start":null,"version_end":"2.20.2","version_end_inclusive":false,"fixed_version":"2.20.2","type":null,"source":"nvd"}],"references":[{"url":"https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/","title":"Third Party Advisory","source":"nvd"},{"url":"https://www.balbooa.com/gridbox","title":"Product","source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2026-66490","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66490","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":"2026-09-26T09:34:31.194827Z","last_seen_at":"2026-09-26T09:34:31.194827Z"}],"history":[{"at":"2026-09-26T09:34:31.194827Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}