CVE-2026-19453: Unknown Jetbackup

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

The JetBackup WordPress plugin before 3.1.23.5 does not verify the role or capabilities of the account it preserves across a restore or migration before granting it administrator privileges, allowing a subscriber-level user to gain administrator access after the site owner restores or migrates the site.

Affected products

• Unknown Jetbackup: from 3.1.7.9, before 3.1.23.5 (fixed in 3.1.23.5)

Published 2026-09-02. Last modified 2026-09-03.