CVE-2026-19454
Medium
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.
SeverityMedium
CVSS4.4
Exploit probability—
ProductJetBackup
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- JetBackup3.1.23.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| JetBackup | 3.1.18.8 ≤ v < 3.1.23.5 | 3.1.23.5 |
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