JetBackup 3.1.18.8 - 3.1.23.3 - Admin+ Multisite Network Backup Download
Priority LOW 20CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-863.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed JetBackup (Unknown): 3.1.23.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | JetBackup | 3.1.18.8 to before 3.1.23.5 | 3.1.23.5 | Patch available | CNA |
- JetBackup VendorUnknown Affected 3.1.18.8 to before 3.1.23.5 Fixed in 3.1.23.5 Patch available CNA
Remediation
- Fix · CNA JetBackup (Unknown) Fixed in 3.1.23.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-19454
- 2026-10-03 Alias added: GHSA-6883-v78q-c9cg
References
Sources
- CVE-2026-19454 · CVE Program
- CVE-2026-19454 · NVD
- FIRST EPSS
- GHSA-6883-v78q-c9cg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences