{"id":"CVE-2026-19454","aliases":["EUVD-2026-66875","GHSA-6883-v78q-c9cg"],"status":"published","title":"JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download","description":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation check before serving backup archives and job logs, allowing an administrator of the network's main site who is not a Super Admin to download a full backup of the entire network, including every site's data and the shared webroot.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00328,"percentile":0.26204,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-08-27T06:00:17Z","modified":"2026-08-28T18:43:25Z","products":[{"vendor":"unknown","product":"jetbackup"}],"references":[{"url":"https://wpscan.com/vulnerability/1f5480c1-260a-40ce-9938-112746f9e8e8/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19454"},{"url":"https://wpscan.com/vulnerability/1f5480c1-260a-40ce-9938-112746f9e8e8"},{"url":"https://github.com/advisories/GHSA-6883-v78q-c9cg"}],"sources":{"cve":[{"id":"CVE-2026-19454","title":"JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download","description":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation check before serving backup archives and job logs, allowing an administrator of the network's main site who is not a Super Admin to download a full backup of the entire network, including every site's data and the shared webroot.","status":"published","published":"2026-08-27T06:00:17.928Z","modified":"2026-08-27T14:23:47.496Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T13:47:17.512524Z"}],"euvd":[{"id":"EUVD-2026-66875","description":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation check before serving backup archives and job logs, allowing an administrator of the network's main site who is not a Super Admin to download a full backup of the entire network, including every site's data and the shared webroot.","status":"published","published":"2026-08-27T06:00:17Z","modified":"2026-08-27T14:23:47Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:28.581047Z"}],"ghsa":[{"id":"GHSA-6883-v78q-c9cg","title":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation...","description":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation check before serving backup archives and job logs, allowing an administrator of the network's main site who is not a Super Admin to download a full backup of the entire network, including every site's data and the shared webroot.","status":"published","published":"2026-08-27T06:31:34Z","modified":"2026-08-27T18:32:09Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:11:03.796873Z"}],"nvd":[{"id":"CVE-2026-19454","description":"The JetBackup  WordPress plugin before 3.1.23.5 does not perform its multisite authorisation check before serving backup archives and job logs, allowing an administrator of the network's main site who is not a Super Admin to download a full backup of the entire network, including every site's data and the shared webroot.","status":"published","published":"2026-08-27T06:16:57.207Z","modified":"2026-08-28T18:43:25.883Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:42.035353Z"}]}}