CVE-2026-19454 — MEDIUM (4.4)

Vulnerability 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.

CVSS Score

4.4

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-863

References

https://wpscan.com/vulnerability/1f5480c1-260a-40ce-9938-112746f9e8e8/

FAQ

What is CVE-2026-19454?

CVE-2026-19454 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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...

How severe is CVE-2026-19454?

CVE-2026-19454 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-19454?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.