CVE-2026-19453highCWE-269

CVE-2026-19453: high-severity vulnerability in JetBackup

JetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User Selection

Published

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41Vexday Risk Score

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

ssvc Attendcvss 7.1epss 0.3%
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
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-2026-19454MEDIUMJetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup DownloadEPSS 0.3%