CVE-2026-19454

JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download

Published Aug 27, 2026 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-863
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-284
Type Values Removed Values Added
First Time appeared Jetbackup
Jetbackup jetbackup
Wordpress
Wordpress wordpress
Vendors & Products Jetbackup
Jetbackup jetbackup
Wordpress
Wordpress wordpress
Type Values Removed Values Added
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.
Title JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 27, 2026, 2:23 PM
Reserved
Aug 10, 2026, 2:10 PM
Status
Deferred
Published
Aug 27, 2026, 6:16 AM
Modified
Aug 28, 2026, 6:43 PM