CVE Catalog

CVE-2026-19454

MediumCVSS 4.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.25%

17th percentile - higher than 17% of all known CVEs

Summary

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.

Risk Assessment

Unauthorized access to full backups can lead to leakage of sensitive data from all sites in the network, constituting a serious security breach.

Recommendation

Update the plugin to version 3.1.23.5 or later. Restrict access to backup features to Super Admins only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS