CVE-2026-19454mediumCWE-863

CVE-2026-19454: medium-severity vulnerability in JetBackup

JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.4epss 0.3%
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.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Affected products
Unknown · JetBackup
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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CVE-2023-7165HIGHJetBackup < 2.0.9.9 - Directory Listing Exposing BackupsEPSS 1.9%CVE-2026-19453HIGHJetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User SelectionEPSS 0.3%