Vulnerability · Published Aug 27, 2026 · Assigned by WPScan
CVE-2026-19454JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download
Medium 4.4
In plain English
A medium-severity incorrect authorization in JetBackup from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.3%top 74.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
References
- https://wpscan.com/vulnerability/1f5480c1-260a-40ce-9938-112746f9e8e8/ exploit, vdb-entry, technical-description