{"id":"CVE-2026-65885","aliases":["EUVD-2026-50298","GHSA-ch97-6m5m-2jh8"],"status":"published","title":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 2.20.2","description":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 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.","severity":{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00521,"percentile":0.44593,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-07-29T12:05:48Z","modified":"2026-10-23T23:10:00Z","products":[{"vendor":"balbooa","product":"gridbox"},{"vendor":"balbooa.com","product":"gridbox extension for joomla"}],"references":[{"url":"https://www.balbooa.com/gridbox","tags":["product","Product"]},{"url":"https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65885"},{"url":"https://mysites.guru/blog/gridbox-23-critical-vulnerabilities"},{"url":"https://github.com/advisories/GHSA-ch97-6m5m-2jh8"}],"sources":{"cve":[{"id":"CVE-2026-65885","title":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 2.20.2","description":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 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.","status":"published","published":"2026-07-29T12:05:48.262Z","modified":"2026-08-12T13:52:19.632Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T13:37:13.934727Z"}],"euvd":[{"id":"EUVD-2026-50298","description":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 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.","status":"published","published":"2026-07-29T12:05:48Z","modified":"2026-08-12T13:52:19Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red","level":"critical"}],"updated_at":"2026-11-02T18:01:58.638592Z"}],"ghsa":[{"id":"GHSA-ch97-6m5m-2jh8","title":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 2.20.2 - File...","description":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 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.","status":"published","published":"2026-07-29T15:31:11Z","modified":"2026-08-05T21:31:32Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red","level":"critical"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:10:07.926015Z"}],"nvd":[{"id":"CVE-2026-65885","description":"Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox \u003c 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.","status":"published","published":"2026-07-29T13:19:10.82Z","modified":"2026-10-23T23:10:00.157Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:33.629616Z"}]}}