{"id":"CVE-2026-65885","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-65885","summary":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2 - File upload methods allows authenticated attackers to upload arbitrary files. Turns into an…","details":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2 - File upload methods allows authenticated attackers to upload arbitrary files. Turns into an authenticated RCE if combined with CVE-2026-65884 as the required account can be created by the attacker.","published":"2026-07-29T13:19:10.820","modified":"2026-08-05T18:37:52.050","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00286,"percentile":0.21124,"asOf":"2026-08-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/"},{"type":"WEB","url":"https://www.balbooa.com/gridbox"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-05T18:37:52.050"}}